AlgaeBase Taxonomic Thesaurus
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  Chromista
      Heterokontophyta
            Bacillariophyceae
                   [Bacillariophyta]
                    Naviculales
                            Naviculaceae
                                     Adlafia
                                             Adlafia aquaeductae
                                                   [Navicula bryophila var. aquaeductae]
                                                   [Navicula bryophila var. lapponica]
                                                   [Navicula pseudopupula var. aquaeductae]
                                                   [Navicula pupula var. aquaeductae]
                                             Adlafia brockmannii
                                             Adlafia bryophila
                                                   [Navicula maillardii]
                                                   [Navicula subtilissima var. bryophila]
                                                   Adlafia bryophila f. constricta
                                             Adlafia bryophiloides
                                                   [Pinnularia intermedia var. bryophila]
                                             Adlafia coringii
                                             Adlafia drouetiana
                                                   [Navicula drouetiana]
                                             Adlafia frenotii
                                             Adlafia linearis
                                             Adlafia minuscula
                                                   [Craticula importuna]
                                                   [Navicula importuna]
                                                   [Schizonema minusculum]
                                               Adlafia minuscula var. muralis
                                                     [Navicula cloacina]
                                                     [Navicula minuscula var. muralis]
                                                     [Schizonema murale]
                                             Adlafia multnomahii
                                             Adlafia muralis
                                             Adlafia muscora
                                                   [Navicula muscora]
                                             Adlafia parabryophila
                                                   [Naviculadicta parabryophila]
                                             Adlafia submuscora
                                             Adlafia suchlandtii
                                                   [Navicula suchlandtii]
                                     Alveovallum
                                             Alveovallum beyensii
                                     Amicula
                                             Amicula specululum
                                                   [Navicula specululum]
                                     Austariella
                                             Austariella admissa
                                                   [Navicula admissa]
                                             Austariella jamalinensis
                                               Austariella jamalinensis var. subcircularis
                                                     [Navicula jamalinensis var. subcircularis]
                                     Berkella
                                     Caloneis
                                             Caloneis abnormis
                                             Caloneis absoluta
                                             Caloneis achnanthiformis
                                             Caloneis adenensis
                                             Caloneis advena
                                             Caloneis aemula
                                             Caloneis aequatorialis
                                             Caloneis aerophila
                                             Caloneis africana
                                                   [Caloneis brevis f. africana]
                                             Caloneis allorgei
                                             Caloneis alpestris
                                                   [Schizonema alpestre]
                                               Caloneis alpestris var. inflata
                                             Caloneis amica
                                             Caloneis amphicephala
                                             Caloneis amphigomphus
                                             Caloneis amphisbaena
                                                   [Schizonema amphisbaenum]
                                               Caloneis amphisbaena var. aequata
                                               Caloneis amphisbaena var. fuscata
                                               Caloneis amphisbaena var. subsalina
                                                     [Caloneis amphisbaena f. subsalina]
                                                     [Caloneis subsalina]
                                                     [Navicula amphisbaena var. subsalina]
                                               Caloneis amphisbaena var. undulata
                                             Caloneis andersonii
                                             Caloneis angustivalva
                                             Caloneis arctica
                                                   [Caloneis silicula f. arctica]
                                             Caloneis austrogeorgica
                                             Caloneis bacillaris
                                                   [Caloneis bacillaris var. bacillaris]
                                                   Caloneis bacillaris f. semiinterrupta
                                               Caloneis bacillaris var. chandolensis
                                               Caloneis bacillaris var. stauroneiformis
                                               Caloneis bacillaris var. thermalis
                                             Caloneis bacillum
                                                   [Caloneis bacillum f. fasciata]
                                                   [Caloneis bacillum var. fasciata]
                                                   [Caloneis backmanii var. fasciata]
                                                   [Caloneis lagerstedtii]
                                                   [Schizonema fasciatum]
                                                   [Stauroneis bacillum]
                                             Caloneis backmanii
                                             Caloneis baikalensis
                                             Caloneis baltica
                                               Caloneis baltica var. undulata
                                             Caloneis balticum
                                             Caloneis bannajensis
                                             Caloneis barrowiana
                                             Caloneis beccariana
                                             Caloneis biclavata
                                             Caloneis biconfusa
                                             Caloneis biconstricta
                                             Caloneis bicuneata
                                                   [Navicula bicuneata]
                                             Caloneis binotata
                                             Caloneis biseriata
                                             Caloneis bleischiana
                                             Caloneis borealis
                                             Caloneis bottnica
                                             Caloneis bourrellyi
                                             Caloneis branderii
                                             Caloneis brasiliensis
                                             Caloneis brevis
                                               Caloneis brevis var. elliptica
                                                     [Navicula brevis var. elliptica]
                                             Caloneis bryophila
                                             Caloneis budensis
                                             Caloneis butantana
                                             Caloneis callosa
                                             Caloneis campbellii
                                             Caloneis castracanei
                                             Caloneis chasei
                                             Caloneis clevei
                                                   [Navicula clevei]
                                                   [Schizonema clevei]
                                               Caloneis clevei var. attenuata
                                               Caloneis clevei var. carteriana
                                               Caloneis clevei var. undulata
                                               Caloneis clevei var. uruguayensis
                                             Caloneis constans
                                             Caloneis continua
                                             Caloneis crassa
                                                   [Navicula crassa]
                                             Caloneis delphineae
                                             Caloneis desertorum
                                             Caloneis digitus
                                             Caloneis dorogostaiskyi
                                             Caloneis dubia
                                                   [Caloneis sublinearis]
                                                   [Navicula sublinearis]
                                                   [Pinnularia tenuis var. sublinearis]
                                                   [Schizonema sublineare]
                                             Caloneis dumbeana
                                             Caloneis egena
                                             Caloneis elongata
                                             Caloneis excentrica
                                             Caloneis falcifera
                                             Caloneis fasciata
                                                   Caloneis fasciata f. fonticola
                                               Caloneis fasciata var. fonticola
                                               Caloneis fasciata var. fontinalis
                                             Caloneis fenzlii
                                                   [Caloneis amphisbaena var. fenzlii]
                                                   [Navicula amphisbaena var. fenzlii]
                                                   [Navicula fenzlii]
                                                   [Navicula subsalina var. fenzlii]
                                             Caloneis fontinalis
                                                   [Caloneis bacillum var. fontinalis]
                                             Caloneis formosa
                                               Caloneis formosa var. cuyabenensis
                                               Caloneis formosa var. densestriata
                                               Caloneis formosa var. holmiensis
                                             Caloneis fossilis
                                             Caloneis frasnensis
                                             Caloneis frigida
                                             Caloneis furcata
                                             Caloneis fusioides
                                             Caloneis fusoides
                                                   [Navicula fusoides]
                                                   [Navicula subula]
                                             Caloneis fusus
                                             Caloneis gjeddeana
                                             Caloneis glaberrima
                                             Caloneis gracilis
                                             Caloneis guadalupensis
                                             Caloneis hardmaniana
                                             Caloneis hebes
                                                   [Caloneis obtusa]
                                                   [Navicula obtusa]
                                             Caloneis heimii
                                             Caloneis hendeyi
                                             Caloneis hexapla
                                             Caloneis hitoyosiensis
                                             Caloneis holstii
                                             Caloneis hustedtii
                                             Caloneis hyalina
                                             Caloneis incognita
                                             Caloneis inliberalis
                                             Caloneis intermedia
                                             Caloneis jonssoni
                                             Caloneis jotunensis
                                             Caloneis kateri
                                             Caloneis kristinae
                                             Caloneis kryophila
                                             Caloneis lacunarum
                                               Caloneis lacunarum var. fontinalis
                                             Caloneis ladogensis
                                               Caloneis ladogensis var. latestriata
                                             Caloneis ladogonensis
                                               Caloneis ladogonensis var. densistriata
                                             Caloneis lagerheimii
                                             Caloneis lamella
                                             Caloneis lancettula
                                                   [Caloneis aemula var. lancettula]
                                                   [Caloneis bacillaris var. lancettula]
                                                   [Caloneis bacillum f. lancettula]
                                                   [Caloneis bacillum var. lancettula]
                                             Caloneis langebertalotioides
                                             Caloneis laticingulata
                                             Caloneis latiuscula
                                                   [Navicula latiuscula]
                                               Caloneis latiuscula var. rhombica
                                             Caloneis latiusculata
                                               Caloneis latiusculata var. subholstei
                                             Caloneis lauta
                                             Caloneis lepidula
                                                   [Navicula lepidula]
                                                   [Schizonema lepidulum]
                                             Caloneis leptosoma
                                                   [Navicula leptosoma]
                                                   [Pinnularia leptosoma f. erlangensis]
                                                   [Schizonema leptosomum]
                                             Caloneis lewisii
                                               Caloneis lewisii var. inflata
                                                     [Navicula trinodis var. inflata]
                                             Caloneis liber
                                                   [Caloneis liber var. maxima]
                                                   [Navicula liber var. maxima]
                                                   [Schizonema liber]
                                               Caloneis liber var. bicuneata
                                               Caloneis liber var. eccentrica
                                               Caloneis liber var. umbilicata
                                             Caloneis limosa
                                                   [Caloneis schilberszkyi var. biconstricta]
                                                   [Caloneis schumanniana var. biconstricta]
                                                   [Caloneis silicula subsp. limosa]
                                                   [Caloneis silicula var. gibberula]
                                                   [Caloneis silicula var. limosa]
                                                   [Caloneis trochus var. biconstricta]
                                                   [Navicula gibberula var. limosa]
                                                   [Navicula limosa var. gibberula]
                                                   [Navicula nodosa var. limosa]
                                                   [Navicula schumanniana var. biconstricta]
                                                   [Navicula silicula var. undulata]
                                                   [Navicula trochus var. biconstricta]
                                                   [Neidium limosa]
                                                   [Pinnularia limosa]
                                               Caloneis limosa var. gibberula
                                               Caloneis limosa var. lancettula
                                               Caloneis limosa var. subinflata
                                               Caloneis limosa var. undulata
                                             Caloneis linearis
                                                   [Caloneis liber var. linearis]
                                                   [Navicula linearis]
                                             Caloneis macedonica
                                             Caloneis macei
                                             Caloneis macquariensis
                                             Caloneis malayensis
                                             Caloneis marnieri
                                             Caloneis mexicana
                                             Caloneis moelleri
                                             Caloneis molaris
                                                   [Navicula macra]
                                                   [Navicula molaris]
                                                   [Schizonema molare]
                                             Caloneis muscicola
                                             Caloneis neocaledonica
                                             Caloneis nipponica
                                             Caloneis nubicola
                                             Caloneis obesa
                                             Caloneis odiosa
                                             Caloneis oregonica
                                                   [Caloneis amphisbaena var. liburnica]
                                                   [Caloneis formosa var. liburnica]
                                                   [Caloneis liburnica]
                                               Caloneis oregonica var. quadrilineata
                                                     [Caloneis formosa var. quadrilineata]
                                                     [Navicula formosa var. quadrilineata]
                                                     [Navicula quadrilineata]
                                             Caloneis ostenii
                                             Caloneis patagonica
                                             Caloneis perlepida
                                             Caloneis permagna
                                                   [Caloneis bivittata var. rostrata]
                                                   [Caloneis bivittata]
                                                   [Caloneis permagna var. lewisiana]
                                                   [Navicula bivittata var. robusta]
                                                   [Navicula bivittata]
                                                   [Navicula oregonica var. bivittata]
                                                   [Navicula permagna]
                                                   [Pinnularia permagna]
                                                   [Schizonema bivittatum]
                                                   [Schizonema permagnum]
                                               Caloneis permagna var. elongata
                                             Caloneis placentula
                                             Caloneis probabilis
                                             Caloneis pseudoclevei
                                             Caloneis pulchra
                                               Caloneis pulchra var. interrupta
                                             Caloneis salebrastriata
                                             Caloneis salicula
                                             Caloneis samoensis
                                                   [Navicula samoensis]
                                             Caloneis savitschii
                                             Caloneis schilberszkyi
                                             Caloneis schroederioides
                                             Caloneis schroeteri
                                             Caloneis schumaniana
                                             Caloneis schumanniana
                                               Caloneis schumanniana var. lancettula
                                             Caloneis septentrionalis
                                             Caloneis silicata
                                               Caloneis silicata var. tumida
                                             Caloneis silicula
                                                   Caloneis silicula f. alpina
                                                   Caloneis silicula f. angusta
                                                   Caloneis silicula f. borivliana
                                                   Caloneis silicula f. claviceps
                                                   Caloneis silicula f. constricta
                                                   Caloneis silicula f. curta
                                                   Caloneis silicula f. diminuta
                                                   Caloneis silicula f. hankensis
                                                   Caloneis silicula f. intermedia
                                                   Caloneis silicula f. lata
                                                   Caloneis silicula f. minima
                                                   Caloneis silicula f. minor
                                                   Caloneis silicula f. nipponica
                                                   Caloneis silicula f. parva
                                                   Caloneis silicula f. peisonis
                                                   Caloneis silicula f. rhomboidalis
                                                   Caloneis silicula f. robusta
                                                   Caloneis silicula f. semiaperta
                                               Caloneis silicula var. amphirhynchus
                                               Caloneis silicula var. blancheana
                                               Caloneis silicula var. borivliana
                                               Caloneis silicula var. capitata
                                               Caloneis silicula var. cuneata
                                               Caloneis silicula var. elliptica
                                               Caloneis silicula var. inflata
                                               Caloneis silicula var. intermedia
                                               Caloneis silicula var. longissima
                                               Caloneis silicula var. major
                                               Caloneis silicula var. peisonis
                                               Caloneis silicula var. subundulata
                                               Caloneis silicula var. truncata
                                               Caloneis silicula var. tumida
                                               Caloneis silicula var. undulata
                                             Caloneis speciosa
                                                   [Caloneis pseudoschumanniana]
                                                   [Navicula pseudoschumanniana]
                                             Caloneis stauroneiformis
                                             Caloneis subclevei
                                             Caloneis tenuis
                                             Caloneis thermalis
                                             Caloneis trigonocephala
                                             Caloneis trinodis
                                               Caloneis trinodis var. inflata
                                             Caloneis trochus
                                             Caloneis undosa
                                             Caloneis undulata
                                             Caloneis undulatiformis
                                             Caloneis vasileyevae
                                             Caloneis vaucheriae
                                             Caloneis ventricosa
                                                   [Caloneis silicula subsp. ventricosa]
                                                   [Caloneis silicula var. ventricosa]
                                                   [Navicula leptogongyla]
                                                   [Navicula limosa var. ventricosa]
                                                   [Navicula major var. leptogongyla]
                                                   [Navicula silicula var. ventricosa]
                                                   [Navicula viridis var. leptogongyla]
                                                   [Pinnularia major (maior) var. leptogongyla]
                                                   [Schizonema ventricosum]
                                               Caloneis ventricosa var. alpina
                                                     [Caloneis silicula var. alpina]
                                                     [Navicula limosa var. alpina]
                                               Caloneis ventricosa var. intermedia
                                               Caloneis ventricosa var. minuta
                                                     [Caloneis minuta]
                                                     [Caloneis silicula var. minuta]
                                                     [Navicula ventricosa f. minuta]
                                                     [Navicula ventricosa var. minuta]
                                               Caloneis ventricosa var. subundulata
                                                     [Caloneis subundulata var. grunowii]
                                                     [Caloneis subundulata]
                                                     [Navicula ventricosa var. subundulata]
                                               Caloneis ventricosa var. truncatula
                                                     [Caloneis silicula var. truncatula]
                                                     [Navicula silicula var. truncatula]
                                                     [Navicula ventricosa var. truncatula]
                                             Caloneis wardii
                                                   [Schizonema wardii]
                                             Caloneis westii
                                                   [Navicula tumida var. westii]
                                                   [Navicula westii]
                                                   [Schizonema formosum]
                                                   [Scoliopleura westii]
                                             Caloneis zachariasii
                                     Candollella
                                             Candollella hyemalis
                                     Capartogramma
                                             Capartogramma amphoroides
                                             Capartogramma crucicula
                                                   [Schizonema bicrucicula]
                                                   [Schizostauron crucicula]
                                             Capartogramma jeanii
                                             Capartogramma karstenii
                                                   [Schizostauron karstenii]
                                             Capartogramma pumila
                                             Capartogramma rhombicum
                                     Chamaepinnularia
                                             Chamaepinnularia abdita
                                             Chamaepinnularia aerophila
                                             Chamaepinnularia alexandrowiczii
                                             Chamaepinnularia amphiborealis
                                             Chamaepinnularia antarctica
                                             Chamaepinnularia australomediocris
                                                   [Navicula australomediocris]
                                             Chamaepinnularia begeri
                                             Chamaepinnularia bergeri
                                             Chamaepinnularia brasiliana
                                             Chamaepinnularia brasilianopsis
                                             Chamaepinnularia bremensis
                                             Chamaepinnularia bremoides
                                             Chamaepinnularia brevissima
                                             Chamaepinnularia calida
                                                   [Navicula calida]
                                             Chamaepinnularia circumborealis
                                             Chamaepinnularia clamans
                                             Chamaepinnularia cymatopleura
                                                   [Navicula cymatopleura]
                                             Chamaepinnularia distantepunctata
                                             Chamaepinnularia elongata
                                                   [Navicula brevissima var. elongata]
                                             Chamaepinnularia evanida
                                                   [Navicula evanida]
                                             Chamaepinnularia falkiae
                                             Chamaepinnularia ferrarioana
                                             Chamaepinnularia furtiva
                                                   [Navicula furtiva]
                                             Chamaepinnularia gandrupii
                                               Chamaepinnularia gandrupii var. simplex
                                             Chamaepinnularia gerlachei
                                             Chamaepinnularia gibsonii
                                             Chamaepinnularia gracilistriata
                                             Chamaepinnularia hassiaca
                                                   [Chamaepinnularia soehrensis var. hassiaca]
                                                   [Navicula hassiaca]
                                                   [Navicula soehrensis var. hassiaca]
                                             Chamaepinnularia hippodontiforma
                                             Chamaepinnularia justa
                                                   [Navicula justa]
                                             Chamaepinnularia krasskei
                                             Chamaepinnularia krookiformis
                                                   [Pinnularia krookiformis]
                                             Chamaepinnularia krookii
                                                   [Navicula krookii]
                                                   [Pinnularia globiceps var. krockii]
                                                   [Pinnularia globiceps var. krookii]
                                                   [Pinnularia krookii]
                                             Chamaepinnularia maragaritacea
                                             Chamaepinnularia margaritacea
                                             Chamaepinnularia margaritiana
                                             Chamaepinnularia mediocriformis
                                             Chamaepinnularia mediocris
                                                   [Pinnularia mediocris]
                                               Chamaepinnularia mediocris var. atomus
                                             Chamaepinnularia minutissima
                                                   [Pinnularia minutissima]
                                             Chamaepinnularia muscicola
                                                   [Chamaepinnularia soehrensis var. muscicola]
                                                   [Eunotia praerupta-bidens f. muscicola]
                                                   [Navicula muscicola]
                                                   [Pinnularia muscicola]
                                                   [Pinnularia soehrensis var. muscicola]
                                             Chamaepinnularia obsoleta
                                                   [Navicula obsoleta]
                                             Chamaepinnularia oculus
                                                   [Navicula oculus]
                                             Chamaepinnularia parsura
                                                   [Navicula obscura]
                                                   [Navicula parsura]
                                             Chamaepinnularia perfidissima
                                                   [Navicula perfidissima]
                                             Chamaepinnularia reinventa
                                               Chamaepinnularia reinventa subsp. urtroquarea
                                             Chamaepinnularia resalutata
                                             Chamaepinnularia rexii
                                             Chamaepinnularia rhombelliptica
                                             Chamaepinnularia rupicola
                                             Chamaepinnularia schauppiana
                                             Chamaepinnularia soehrensioides
                                             Chamaepinnularia soehrensis
                                               Chamaepinnularia soehrensis var. capitata
                                             Chamaepinnularia submuscicola
                                                   [Navicula submuscicola]
                                             Chamaepinnularia tongatensis
                                             Chamaepinnularia truncata
                                             Chamaepinnularia ventosa
                                                   [Navicula ventosa]
                                             Chamaepinnularia vyvermanii
                                             Chamaepinnularia weikertii
                                                   [Navicula weikertii]
                                             Chamaepinnularia wiktoriae
                                             Chamaepinnularia witkowskii
                                                   [Navicula witkowskii]
                                                   [Naviculadicta witkowskii]
                                     Cocconema
                                             Cocconema acutum
                                             Cocconema affine
                                             Cocconema arcus
                                             Cocconema australasicum
                                             Cocconema biceps
                                             Cocconema boeckii
                                             Cocconema bremii
                                             Cocconema cingulatum
                                             Cocconema cistula
                                               Cocconema cistula var. minor
                                             Cocconema cretae
                                             Cocconema cuspidatum
                                             Cocconema cymbiforme
                                               Cocconema cymbiforme var. parvum
                                             Cocconema dianae
                                             Cocconema ehrenbergii
                                             Cocconema electri
                                             Cocconema faba
                                             Cocconema fossile
                                             Cocconema fusidium
                                             Cocconema gastroides
                                             Cocconema gibbum
                                               Cocconema gibbum var. graecum
                                               Cocconema gibbum var. nanum
                                               Cocconema gibbum var. sessile
                                             Cocconema gracile
                                             Cocconema graecum
                                             Cocconema granulatum
                                             Cocconema grossestriatum
                                               Cocconema grossestriatum var. tanganyikae
                                             Cocconema inaequale
                                             Cocconema lanceolatum
                                               Cocconema lanceolatum var. boeckii
                                             Cocconema leptoceros
                                             Cocconema lunula
                                               Cocconema lunula var. electri
                                             Cocconema maculata
                                             Cocconema mexicanum
                                               Cocconema mexicanum var. elongata
                                             Cocconema navicula
                                             Cocconema obtusum
                                             Cocconema parva
                                             Cocconema parvum
                                             Cocconema pusillum
                                             Cocconema saxonicum
                                             Cocconema scotica
                                             Cocconema scoticum
                                             Cocconema sinuatum
                                             Cocconema stomatophorum
                                               Cocconema stomatophorum var. boreale
                                               Cocconema stomatophorum var. fossile
                                               Cocconema stomatophorum var. genuina
                                             Cocconema subtile
                                             Cocconema tumida
                                                   Cocconema tumida f. capitata
                                             Cocconema tumidum (tumida)
                                             Cocconema uncinatum
                                             Cocconema variabile
                                             Cocconema variabilis
                                             Cocconema ventricosa
                                             Cocconema ventricosum
                                             Cocconema vernale
                                     Craspedostauros
                                             Craspedostauros amphoroides
                                                   [Stauroneis amphoroides]
                                             Craspedostauros australis
                                             Craspedostauros britannicus
                                             Craspedostauros capensis
                                             Craspedostauros decipiens
                                             Craspedostauros indubitabilis
                                             Craspedostauros laevissimus
                                             Craspedostauros neoconstrictus
                                     Cymatoneis
                                             Cymatoneis circumvallata
                                             Cymatoneis margarita
                                             Cymatoneis ovalis
                                             Cymatoneis sulcata
                                                   [Navicula sulcata]
                                     Decussata
                                             Decussata hexagona
                                                   [Navicula hexagona]
                                                   [Navicula placenta f. parallela]
                                                   [Navicula placenta var. minor]
                                                   [Navicula placenta var. parallela]
                                                   [Navicula placentula var. minor]
                                             Decussata placenta
                                                   [Ceratoneis placenta]
                                                   [Schizonema placenta]
                                               Decussata placenta var. obtusa
                                     Diademoides
                                           [Diadema]
                                             Diademoides luxuriosa
                                                   [Diadema luxuriosa]
                                     Envekadea
                                             Envekadea hedinii
                                                   [Navicula hedini]
                                             Envekadea metzeltinii
                                             Envekadea palestinae
                                             Envekadea pseudocrassirostris
                                                   [Navicula pseudocrassirostris]
                                     Eolimna
                                             Eolimna adnata
                                                   [Navicula adnata]
                                             Eolimna becaresii
                                             Eolimna comperei
                                             Eolimna elorantana
                                                   [Naviculadicta elorantana]
                                             Eolimna inconspicua
                                             Eolimna krummensis
                                             Eolimna martinii
                                             Eolimna minima
                                             Eolimna muraloides
                                                   [Navicula muraloides]
                                             Eolimna neocaledonica
                                             Eolimna rhombelliptica
                                             Eolimna rhombica
                                             Eolimna ruttneri
                                             Eolimna silvahercynia
                                                   [Navicula silvahercynia]
                                             Eolimna subminuscula
                                                   [Navicula subminuscula]
                                             Eolimna submuralis
                                                   [Navicula submuralis]
                                             Eolimna thioense
                                             Eolimna verecundaeformis
                                             Eolimna zalokariae
                                     Fistulifera
                                             Fistulifera iranensis
                                             Fistulifera pelliculosa
                                                   [Cocconeis sigmoides]
                                                   [Frustulia pelliculosa]
                                                   [Schizonema pelliculosum]
                                                   [Synedra minutissima var. pelliculosa]
                                             Fistulifera saprophila
                                                   [Navicula saprophila]
                                     Fogedia
                                             Fogedia acuta
                                                   [Navicula finmarchica var. acuta]
                                             Fogedia christensenii
                                             Fogedia coreana
                                             Fogedia densa
                                             Fogedia elliptica
                                             Fogedia finmarchica
                                                   [Stauroneis finmarchica]
                                             Fogedia geisslerae
                                             Fogedia giffeniana
                                                   [Navicula giffeniana]
                                               Fogedia giffeniana var. yemenitica
                                             Fogedia heterovalvata
                                                   [Navicula heterovalvata]
                                             Fogedia krammeri
                                             Fogedia lyra
                                     Geissleria
                                             Geissleria acceptata
                                                   [Navicula acceptata]
                                                   [Navicula ignota var. acceptata]
                                             Geissleria aikenensis
                                             Geissleria annulata
                                             Geissleria arkonensis
                                             Geissleria boreosiberica
                                             Geissleria capitata
                                                   [Navicula schoenfeldii var. capitata]
                                                   [Navicula schonfeldii var. capitata]
                                             Geissleria clementis
                                             Geissleria cummerowii
                                                   [Navicula cummerowii]
                                             Geissleria declivis
                                                   [Navicula declivis]
                                                   [Navicula inflata var. declivis]
                                             Geissleria decussis
                                                   [Navicula decussis]
                                                   [Navicula exiguiformis f. capitata]
                                                   [Navicula terebrata]
                                                   [Placoneis exiguiformis]
                                             Geissleria dolomitica
                                             Geissleria gereckei
                                             Geissleria hinziae
                                             Geissleria hustedtii
                                             Geissleria ignota
                                             Geissleria kriegeri
                                                   [Navicula kriegeri]
                                             Geissleria lange-bertalotii
                                             Geissleria lateropunctata
                                             Geissleria lusitanica
                                             Geissleria merinensis
                                             Geissleria mesianum
                                             Geissleria mirabilis
                                                   [Stauroneis mirabilis]
                                             Geissleria modica
                                                   [Geissleria ohridana]
                                                   [Navicula modica]
                                             Geissleria moseri
                                             Geissleria neosubtropica
                                             Geissleria neotropica
                                             Geissleria paludosa
                                                   [Navicula ignota var. palustris]
                                                   [Navicula lagerstedtii var. palustris]
                                             Geissleria perelegans
                                             Geissleria punctifera
                                             Geissleria schmidiae
                                             Geissleria schoenfeldii
                                                   [Nitzschia schoenfeldii]
                                               Geissleria schoenfeldii var. tahitiensis
                                                     [Navicula ignota var. tahitiensis]
                                             Geissleria similis
                                             Geissleria subantarctica
                                             Geissleria subdecussis
                                                   [Navicula decussis var. subdecussis]
                                                   [Navicula subdecussis]
                                             Geissleria taafiana
                                             Geissleria tagensis
                                             Geissleria taishanica
                                                   [Navicula taishanica]
                                             Geissleria tectissima
                                                   [Navicula tecta]
                                                   [Navicula tectissima]
                                             Geissleria thingvallae
                                                   [Navicula latens]
                                                   [Navicula tecta var. latens]
                                                   [Navicula thingvallae]
                                     Germainiella
                                             Germainiella enigmatica
                                             Germainiella enigmaticoides
                                     Haslea
                                             Haslea britannica
                                                   [Navicula britannica]
                                             Haslea crucigera
                                                   [Dickieia crucigera]
                                                   [Schizonema crucigerum]
                                                   [Stauroneis crucigera]
                                             Haslea crucigeroides
                                                   [Navicula crucigeroides]
                                               Haslea crucigeroides var. densestriata
                                             Haslea crystallina
                                                   [Navicula crystallina]
                                             Haslea frauenfeldii
                                                   [Amphipleura frauenfeldii]
                                                   [Navicula frauenfeldii]
                                             Haslea gigantea
                                                   [Navicula gigantea]
                                               Haslea gigantea var. tenuis
                                             Haslea gretharum
                                             Haslea howeana
                                                   [Navicula howeana]
                                             Haslea hyalinissima
                                             Haslea indica
                                             Haslea karadagensis
                                             Haslea kjellmanii
                                               Haslea kjellmanii var. subconstricta
                                             Haslea nautica
                                             Haslea nipkowii
                                             Haslea ostrearia
                                             Haslea pallida
                                             Haslea pseudostrearia
                                             Haslea salstonica
                                             Haslea spicula
                                                   [Schizonema spicula]
                                                   [Stauroneis spicula]
                                             Haslea subagnita
                                             Haslea sulcata
                                             Haslea trompii
                                             Haslea vitrea
                                                   [Pleurosigma vitreum]
                                             Haslea wawrikae
                                                   [Navicula wawrikae]
                                     Hippodonta
                                             Hippodonta abunda
                                             Hippodonta acuta
                                             Hippodonta affinis
                                             Hippodonta angustata
                                             Hippodonta arctica
                                                   [Navicula hungarica var. arctica]
                                             Hippodonta arkonensis
                                             Hippodonta avittata
                                                   [Navicula avittata]
                                                   [Navicula subcostulata var. avittata]
                                             Hippodonta avittatiformis
                                             Hippodonta caotica
                                             Hippodonta capitata
                                                   [Navicula digitus]
                                                   [Navicula hungarica f. capitata]
                                                   [Navicula hungarica var. capitata]
                                                   [Pinnularia digitus]
                                                   [Schizonema capitatum]
                                             Hippodonta certa
                                             Hippodonta cocquytiae
                                             Hippodonta communis
                                             Hippodonta conspicua
                                             Hippodonta costulata
                                                   [Schizonema costulatum]
                                             Hippodonta costulatiformis
                                               Hippodonta costulatiformis var. densistriata
                                             Hippodonta coxiae
                                             Hippodonta crassa
                                             Hippodonta dulcis
                                             Hippodonta dupreezii
                                             Hippodonta exigua
                                             Hippodonta geocollegarum
                                             Hippodonta germainii
                                             Hippodonta gravistriata
                                             Hippodonta grunowii
                                             Hippodonta humboldtiana
                                             Hippodonta hungarica
                                                   [Navicula capitata var. hungarica]
                                                   [Navicula humilis]
                                                   [Navicula hungarica f. humilis]
                                                   [Navicula hungarica var. humilis]
                                                   [Navicula viridula var. hungarica]
                                               Hippodonta hungarica var. obtusa
                                             Hippodonta kaiseri
                                             Hippodonta kissii
                                             Hippodonta kociolekii
                                             Hippodonta latelanceolata
                                             Hippodonta lesmonensis
                                                   [Navicula anglica var. subcruciata]
                                                   [Navicula gravistriata]
                                                   [Navicula lesmonensis]
                                                   [Navicula retrocurvata]
                                             Hippodonta linearis
                                                   [Navicula capitata var. linearis]
                                                   [Navicula hungarica var. linearis]
                                             Hippodonta lueneburgensis
                                                   [Navicula capitata var. lueneburgensis]
                                                   [Navicula hungarica var. lueneburgensis]
                                             Hippodonta luneburgensis
                                             Hippodonta media
                                             Hippodonta minuta
                                             Hippodonta naviculiformis
                                             Hippodonta neglecta
                                             Hippodonta pseudacceptata
                                             Hippodonta pseudopinnularia
                                             Hippodonta pulchra
                                             Hippodonta radiata
                                             Hippodonta rostrata
                                                   [Navicula subcostulata var. rostrata]
                                             Hippodonta rostratoides
                                             Hippodonta ruthnielseniae
                                             Hippodonta subcostulata
                                                   [Navicula subcostulata]
                                             Hippodonta subrhombica
                                             Hippodonta subrostrata
                                             Hippodonta subtilissima
                                             Hippodonta umbilicatissima
                                                   [Navicula umbilicatissima]
                                             Hippodonta uruguayensis
                                     Horstia
                                             Horstia renatae
                                     Kobayasiella
                                           [Kobayasia]
                                             Kobayasiella bebourensis
                                             Kobayasiella bicuneus
                                                   [Kobayasia bicuneus]
                                             Kobayasiella elongata
                                             Kobayasiella grandis
                                                   [Kobayasia grandis]
                                             Kobayasiella hodgsonii
                                             Kobayasiella jaagii
                                                   [Kobayasia jaagii]
                                                   [Navicula jaagii]
                                             Kobayasiella krasskei
                                                   [Kobayasia krasskei]
                                             Kobayasiella madumensis
                                                   [Kobayasia madumensis]
                                                   [Navicula madumensis]
                                             Kobayasiella micropunctata
                                                   [Kobayasia micropunctata]
                                                   [Navicula micropunctata]
                                                   [Navicula subtilissima var. micropunctata]
                                             Kobayasiella mirabilis
                                             Kobayasiella neocaledonica
                                                   [Kobayasia neocaledonica]
                                             Kobayasiella okadae
                                                   [Anomoeoneis okadae]
                                                   [Navicula okadae]
                                             Kobayasiella parasubtilissima
                                                   [Kobayasia parasubtilissima]
                                                   [Navicula parasubtilissima]
                                             Kobayasiella pseudostauron
                                                   [Kobayasia pseudostauron]
                                             Kobayasiella pseudosubtilissima
                                                   [Kobayasia pseudosubtilissima]
                                                   [Navicula pseudosubtilissima]
                                             Kobayasiella saxicola
                                                   [Kobayasia saxicola]
                                                   [Navicula saxicola]
                                             Kobayasiella subantarctica
                                             Kobayasiella subtilissima
                                                   [Frustulia subtilissima]
                                                   [Kobayasia subtilissima]
                                                   [Navicula simsii]
                                                   [Schizonema subtilissimum]
                                             Kobayasiella venezuelensis
                                     Krasskella
                                             Krasskella hyalina
                                             Krasskella kriegerana
                                                   [Amphipleura kriegerana]
                                                   [Fragilaria kriegerana]
                                             Krasskella kriegeriana
                                             Krasskella manguinii
                                     Kurpiszia
                                             Kurpiszia kryokonites
                                             Kurpiszia semiaperta
                                             Kurpiszia subprotracta
                                     Lacunicula
                                             Lacunicula bella
                                             Lacunicula sardiniensis
                                     Lecohuia
                                             Lecohuia corrugata
                                             Lecohuia geniculata
                                             Lecohuia martinii
                                             Lecohuia riverae
                                     Mastoneis
                                             Mastoneis biformis
                                                   [Navicula biformis]
                                     Mayamaea
                                             Mayamaea agrestis
                                                   [Navicula agrestis]
                                             Mayamaea aliena
                                                   [Chamaepinnularia aliena]
                                                   [Navicula aliena]
                                             Mayamaea arida
                                                   [Navicula arida]
                                             Mayamaea asellus
                                                   [Navicula asellus]
                                             Mayamaea atomus
                                                   [Amphora atomus]
                                                   [Cocconeis atomus]
                                                   [Navicula caduca]
                                                   [Navicula pseudatomus]
                                                   [Synedra atomus]
                                               Mayamaea atomus var. alcimonica
                                                     [Navicula atomus var. alcimonica]
                                             Mayamaea cahabaensis
                                             Mayamaea cavernicola
                                             Mayamaea crassistriata
                                             Mayamaea destrica
                                             Mayamaea destricta
                                                   [Navicula destricta]
                                             Mayamaea elongata
                                             Mayamaea excelsa
                                                   [Navicula atomus var. excelsa]
                                                   [Navicula excelsa]
                                             Mayamaea fossalis
                                                   [Navicula fossalis]
                                               Mayamaea fossalis var. obsidialis
                                                     [Navicula fossalis var. obsidialis]
                                                     [Navicula obsidialis]
                                             Mayamaea fossaloides
                                                   [Navicula fossaloides]
                                             Mayamaea josefelsteri
                                             Mayamaea lacunolaciniata
                                                   [Navicula lacunolaciniata]
                                             Mayamaea mediterranea
                                             Mayamaea muraliformis
                                             Mayamaea nolensoides
                                                   [Navicula nolensoides]
                                             Mayamaea permitis
                                                   [Mayamaea atomus var. permitis]
                                                   [Navicula atomus var. permitis]
                                                   [Navicula permitis]
                                             Mayamaea pseudopermitis
                                             Mayamaea recondita
                                                   [Mayamaea atomus var. recondita]
                                                   [Navicula atomus var. recondita]
                                             Mayamaea spirans
                                                   [Navicula spirans]
                                     Melonavicula
                                             Melonavicula marylandica
                                     Membraneis
                                             Membraneis challengeri
                                                   [Navicula challengeri]
                                             Membraneis impostor
                                     Meuniera
                                           [Stauropsis]
                                             Meuniera membranacea
                                                   [Navicula membranacea]
                                                   [Stauroneis membranacea]
                                                   [Stauropsis membranacea]
                                     Microcostatus
                                             Microcostatus andinus
                                             Microcostatus australoshetlandicus
                                             Microcostatus deslooveri
                                             Microcostatus egregius
                                             Microcostatus krasskei
                                             Microcostatus kuelbsii
                                                   [Navicula kuelbsii]
                                             Microcostatus maceria
                                             Microcostatus naumannii
                                                   [Navicula naumannii]
                                             Microcostatus ornicollegarum
                                             Microcostatus polonarum
                                             Microcostatus pseudomuralis
                                             Microcostatus stapputana
                                             Microcostatus zackenbergensis
                                     Microfissurata
                                             Microfissurata australis
                                             Microfissurata paludosa
                                     Muelleria
                                             Muelleria aequistriata
                                             Muelleria algida
                                             Muelleria australoatlantica
                                             Muelleria bachmannii
                                                   [Navicula bachmannii]
                                                   [Navicula gibberula var. capitata]
                                             Muelleria cryoconicola
                                             Muelleria dubitanda
                                                   [Navicula dubitanda]
                                             Muelleria gibbula
                                             Muelleria holmenii
                                                   [Navicula holmenii]
                                             Muelleria islandica
                                             Muelleria kristinae
                                             Muelleria linearis
                                                   [Diploneis linearis]
                                             Muelleria lotoskayae
                                             Muelleria luculenta
                                             Muelleria meridionalis
                                             Muelleria patagonica
                                                   [Diploneis patagonica]
                                             Muelleria peraustralis
                                                   [Navicula peraustralis]
                                             Muelleria portomontana
                                             Muelleria regigeorgiensis
                                             Muelleria relicta
                                             Muelleria rostrata
                                             Muelleria sabbei
                                             Muelleria splendidula
                                                   [Navicula splendidula]
                                             Muelleria taylorii
                                             Muelleria terrestris
                                             Muelleria tumida
                                             Muelleria vandermerwei
                                                   [Diploneis vandermerwei]
                                             Muelleria variolata
                                             Muelleria varipunctata
                                     Navicula
                                             Navicula abbotti
                                             Navicula abbottii
                                             Navicula abbreviata
                                             Navicula abdita
                                             Navicula abducta
                                             Navicula abelioensis
                                             Navicula aberrans
                                             Navicula abica
                                             Navicula abiskoensis
                                               Navicula abiskoensis var. tibestii
                                             Navicula aboensis
                                             Navicula abonuensis
                                             Navicula abraensis
                                             Navicula abrupta
                                               Navicula abrupta var. compressa
                                               Navicula abrupta var. densestriata
                                               Navicula abrupta var. linearis
                                               Navicula abrupta var. rattrayi
                                             Navicula abscondita
                                             Navicula abstrusa
                                             Navicula abunda
                                             Navicula abundoides
                                             Navicula acacia
                                             Navicula accedens
                                             Navicula accommoda
                                                   Navicula accommoda f. robusta
                                             Navicula accurata
                                             Navicula acephala
                                             Navicula achnanthoides
                                             Navicula achthera
                                             Navicula acidobionta
                                             Navicula acidophila
                                             Navicula acrosphaeria
                                               Navicula acrosphaeria var. bacillaris
                                               Navicula acrosphaeria var. badeana
                                               Navicula acrosphaeria var. elongata
                                               Navicula acrosphaeria var. fossilis
                                               Navicula acrosphaeria var. sandvicensis
                                             Navicula actinota
                                             Navicula acus
                                               Navicula acus var. minuta
                                             Navicula acuta
                                             Navicula acuticuneata
                                             Navicula acuticuneatula
                                             Navicula acutirostris
                                             Navicula acutissima
                                             Navicula adakensis
                                             Navicula adamantiformis
                                             Navicula adamata
                                             Navicula adami
                                             Navicula adampeensis
                                             Navicula adamsii
                                             Navicula addaae
                                             Navicula addae
                                             Navicula addicta
                                             Navicula admenda
                                             Navicula adminii
                                             Navicula adnatoides
                                             Navicula adonis
                                               Navicula adonis var. gibbosa
                                             Navicula adumbrata
                                             Navicula advena
                                             Navicula adversa
                                             Navicula adversatrix
                                             Navicula aedifex
                                             Navicula aegyptiaca
                                             Navicula aemula
                                               Navicula aemula var. major
                                             Navicula aequalis
                                             Navicula aequinoctialis
                                             Navicula aequora
                                             Navicula aequoria
                                             Navicula aestimata
                                             Navicula aestiva
                                               Navicula aestiva var. rhombica
                                             Navicula affinis
                                                   Navicula affinis f. minor
                                               Navicula affinis var. genuina
                                               Navicula affinis var. intermedia
                                             Navicula affirmata
                                             Navicula africana
                                             Navicula agatkae
                                             Navicula agellus
                                             Navicula aggerica
                                             Navicula aggesta
                                             Navicula aglaos
                                             Navicula agma
                                             Navicula agmastriata
                                             Navicula agnewii
                                             Navicula agnita
                                             Navicula agrestiformis
                                             Navicula agulhasica
                                             Navicula ahmedabadensis
                                             Navicula aikenenses
                                             Navicula aikenensis
                                             Navicula aikensis
                                             Navicula airdevronsixii
                                             Navicula ajajensis
                                             Navicula ajenaensis
                                             Navicula aketechiensis
                                             Navicula akimensis
                                             Navicula aktinoides
                                             Navicula alaskana
                                             Navicula alata
                                             Navicula albanica
                                             Navicula alea
                                             Navicula aleemi
                                             Navicula aleemii
                                             Navicula aleksandrae
                                             Navicula algeriensis
                                             Navicula algida
                                             Navicula algor
                                             Navicula alineae
                                             Navicula alisoviana
                                                   [Navicula peregrina var. alisoviana]
                                                   [Navicula viridula var. alisoviana]
                                             Navicula allista
                                             Navicula allmaniana
                                             Navicula allorgei
                                             Navicula alpestris
                                               Navicula alpestris var. inflata
                                               Navicula alpestris var. minima
                                               Navicula alpestris var. tatrica
                                             Navicula alpha
                                             Navicula alpina
                                               Navicula alpina var. elongata
                                                     [Pinnularia alpina var. elongata]
                                             Navicula alternans
                                               Navicula alternans var. minor
                                             Navicula alterofasciata
                                             Navicula altiplanensis
                                             Navicula amabilis
                                             Navicula ambigua
                                                   Navicula ambigua f. craticula
                                                   Navicula ambigua f. craticularis
                                               Navicula ambigua var. aubertii
                                               Navicula ambigua var. heribaudii
                                             Navicula ambiqua
                                               Navicula ambiqua var. capitata
                                             Navicula americana
                                                   Navicula americana f. delicatula
                                                   Navicula americana f. hankensis
                                                   Navicula americana f. lignitica
                                                   Navicula americana f. pumicata
                                               Navicula americana var. alastis
                                               Navicula americana var. bacillaris
                                               Navicula americana var. genuina
                                               Navicula americana var. minor
                                               Navicula americana var. moesta
                                               Navicula americana var. parallela
                                               Navicula americana var. yberai
                                             Navicula amerinda
                                             Navicula amica
                                             Navicula amicii
                                             Navicula amicorum
                                               Navicula amicorum var. madagascarensis
                                             Navicula ammophila
                                                   Navicula ammophila f. minuta
                                               Navicula ammophila var. beckii
                                               Navicula ammophila var. degenerans
                                               Navicula ammophila var. genuina
                                               Navicula ammophila var. intermedia
                                               Navicula ammophila var. lata
                                               Navicula ammophila var. oestrupii
                                             Navicula amnicola
                                             Navicula amoena
                                             Navicula amoenaeformis
                                             Navicula amphibola
                                                   [Navicula amphibola var. asymmetrica]
                                                   [Navicula gastrum var. styriaca]
                                                   [Navicula punctata var. asymmetrica]
                                                   [Placoneis amphibola]
                                                   [Schizonema styriacum]
                                                   Navicula amphibola f. alaskaensis
                                                   Navicula amphibola f. rectangularis
                                               Navicula amphibola var. arctica
                                               Navicula amphibola var. baicalensis
                                               Navicula amphibola var. curta
                                               Navicula amphibola var. gracilis
                                               Navicula amphibola var. mandschurica
                                               Navicula amphibola var. perrieri
                                               Navicula amphibola var. polymorpha
                                               Navicula amphibola var. stauroneiformis
                                               Navicula amphibola var. subsalina
                                             Navicula amphiceropsis
                                             Navicula amphiceros
                                                   [Pinnularia amphiceros]
                                             Navicula amphigomphus
                                               Navicula amphigomphus var. striata
                                             Navicula amphilepta
                                             Navicula amphirhychus
                                             Navicula amphirhynchus
                                               Navicula amphirhynchus var. acuminata
                                               Navicula amphirhynchus var. major
                                             Navicula amphirrhina
                                             Navicula amphisbaena
                                               Navicula amphisbaena var. fuscata
                                               Navicula amphisbaena var. obtusa
                                             Navicula amphisphenia
                                             Navicula amphistylus
                                             Navicula amphoroides
                                             Navicula ampliata
                                               Navicula ampliata var. minor
                                             Navicula amygdalina
                                                   Navicula amygdalina f. tenera
                                             Navicula anassae
                                             Navicula anatis
                                             Navicula anca
                                             Navicula anceps
                                               Navicula anceps var. amphicephala
                                               Navicula anceps var. elongata
                                               Navicula anceps var. gracilis
                                               Navicula anceps var. linearis
                                               Navicula anceps var. obtusa
                                             Navicula ancilla
                                             Navicula ancisa
                                             Navicula ancora
                                             Navicula anderabensis
                                             Navicula anderssonii
                                             Navicula andesitica
                                             Navicula andicola
                                             Navicula andium
                                             Navicula andrussowii
                                             Navicula anenuta
                                             Navicula angelica
                                             Navicula angelorum
                                             Navicula angleana
                                             Navicula anglica
                                                   Navicula anglica f. elongata
                                                   Navicula anglica f. minor
                                               Navicula anglica var. genuina
                                               Navicula anglica var. minuta
                                               Navicula anglica var. signata
                                               Navicula anglica var. subsalsa
                                                     [Navicula anglica var. subsalina]
                                                     [Navicula placentula var. subsalsa]
                                                     [Navicula tumida var. subsalsa]
                                                     [Schizonema subsalsum]
                                             Navicula anglophila
                                               Navicula anglophila var. signata
                                             Navicula angolensis
                                             Navicula angulati
                                             Navicula angulosa
                                                   Navicula angulosa f. angustior
                                             Navicula angusta
                                                   [Navicula cari var. angusta]
                                                   [Navicula cari var. linearis]
                                                   [Navicula cincta var. angusta]
                                                   [Navicula cincta var. linearis]
                                                   [Navicula falaisensis var. angusta]
                                                   [Navicula lobeliae]
                                                   [Pinnularia radiosa var. angusta]
                                             Navicula anguste-fasciata
                                             Navicula angustissima
                                                   [Navicula lanceolata var. nipponica]
                                             Navicula anhuiensis
                                             Navicula ankobraensis
                                             Navicula anna
                                             Navicula annexa
                                             Navicula annulana
                                               Navicula annulana var. baikalensis
                                             Navicula annulata
                                               Navicula annulata var. baicalensis
                                             Navicula anopaia
                                             Navicula antarctica
                                             Navicula antediluviana
                                             Navicula antediluvianum
                                             Navicula anthracis
                                             Navicula antigua
                                             Navicula antillarum
                                             Navicula antiqua
                                             Navicula antonii
                                             Navicula antonioides
                                             Navicula aparta
                                             Navicula aperta
                                             Navicula apia
                                             Navicula apiculata
                                                   [Navicula crucifera var. apiculata]
                                                   Navicula apiculata f. minima
                                               Navicula apiculata var. maculifera
                                             Navicula appendiculata
                                                   Navicula appendiculata f. exilis
                                               Navicula appendiculata var. brevis
                                               Navicula appendiculata var. budensis
                                               Navicula appendiculata var. exilis
                                               Navicula appendiculata var. lanceolata
                                               Navicula appendiculata var. naveana
                                               Navicula appendiculata var. obtusa
                                             Navicula applanata
                                             Navicula applicita
                                                   Navicula applicita f. tenuis
                                             Navicula applicitoides
                                             Navicula approximata
                                                   Navicula approximata f. elongata
                                                   Navicula approximata f. manca
                                                   Navicula approximata f. morei
                                                   Navicula approximata f. typica
                                               Navicula approximata var. approximata
                                               Navicula approximata var. couperi
                                               Navicula approximata var. finitima
                                               Navicula approximata var. kittoniana
                                               Navicula approximata var. mexicana
                                               Navicula approximata var. nicaeensis
                                                     [Navicula hennedyi var. niceaensis]
                                               Navicula approximata var. schleinitzii
                                               Navicula approximata var. substauroneiformis
                                             Navicula approximatella
                                                   Navicula approximatella f. glabra
                                             Navicula apsteinii
                                             Navicula apta
                                             Navicula aquaeductae
                                                   Navicula aquaeductae f. latiora
                                             Navicula aquaedurae
                                             Navicula aquitaniae
                                               Navicula aquitaniae var. undulata
                                             Navicula aquosa
                                             Navicula aradina
                                             Navicula aranaria
                                               Navicula aranaria var. sublinearis
                                             Navicula arata
                                               Navicula arata var. minor
                                               Navicula arata var. producta
                                               Navicula arata var. validior
                                             Navicula arcana
                                             Navicula archeriana
                                             Navicula archibaldiana
                                             Navicula arcta
                                             Navicula arctica
                                             Navicula arctotenelloides
                                             Navicula arcuata
                                             Navicula ardis
                                             Navicula ardua
                                             Navicula arenaria
                                                   [Navicula lanceolata var. arenaria]
                                               Navicula arenaria var. rostellata
                                               Navicula arenaria var. stricta
                                             Navicula arenariaeformis
                                             Navicula arenicola
                                               Navicula arenicola var. laticeps
                                             Navicula arenosa
                                             Navicula arenula
                                             Navicula areschougiana
                                             Navicula argens
                                             Navicula arguens
                                             Navicula argunensis
                                               Navicula argunensis var. jeniseyensis
                                             Navicula argutiola
                                             Navicula arkona
                                             Navicula armata
                                             Navicula armoricana
                                                   [Navicula barberi]
                                             Navicula arraniensis
                                             Navicula artemidis
                                             Navicula artificiosa
                                             Navicula arvensiformis
                                             Navicula arvensis
                                                   Navicula arvensis f. major
                                               Navicula arvensis var. maior
                                               Navicula arvensis var. major
                                                     [Navicula arvensis var. dubia]
                                             Navicula arvensoides
                                             Navicula arverna
                                                   [Schizonema arvernum]
                                               Navicula arverna var. stauroneiformis
                                             Navicula asanwinsoensis
                                             Navicula ashantiensis
                                             Navicula asiatica
                                             Navicula asklepieionensis
                                             Navicula aspera
                                               Navicula aspera var. hungarica
                                               Navicula aspera var. pulchella
                                             Navicula aspergilla
                                             Navicula aspersa
                                             Navicula asperula
                                             Navicula associata
                                                   [Navicula reichardtiana var. crassa]
                                             Navicula assula
                                             Navicula assuloides
                                             Navicula assymetrica
                                             Navicula astrolabensis
                                             Navicula asymbasia
                                             Navicula asymetrica
                                             Navicula asymmetrica
                                             Navicula atacamae
                                             Navicula atacamana
                                             Navicula atalos
                                             Navicula atasensis
                                             Navicula athenae
                                             Navicula atlantica
                                             Navicula atomarius
                                             Navicula atomoides
                                               Navicula atomoides var. subserians
                                             Navicula atomus
                                               Navicula atomus var. circularis
                                               Navicula atomus var. nipponica
                                             Navicula atwateri
                                             Navicula aubertii
                                             Navicula aucklandica
                                             Navicula aueri
                                             Navicula aulacophaena
                                             Navicula aurangabadensis
                                             Navicula aurantiaca
                                             Navicula aurora
                                                   [Navicula peregrina var. truncata]
                                             Navicula australica
                                             Navicula australoshetlandica
                                             Navicula austrocollegarum
                                             Navicula avenaceoides
                                                   Navicula avenaceoides f. linearis
                                             Navicula avonensis
                                             Navicula baardsethii
                                             Navicula baccata
                                             Navicula bacillaris
                                                   Navicula bacillaris f. lanceolata
                                                   Navicula bacillaris f. linearis
                                                   Navicula bacillaris f. subrostrata
                                               Navicula bacillaris var. constricta
                                               Navicula bacillaris var. cruciata
                                               Navicula bacillaris var. fontinalis
                                               Navicula bacillaris var. inconstantissima
                                               Navicula bacillaris var. thermalis
                                             Navicula bacillifera
                                             Navicula bacilliformis
                                               Navicula bacilliformis var. bullata
                                               Navicula bacilliformis var. cruciata
                                               Navicula bacilliformis var. genuina
                                               Navicula bacilliformis var. intermedia
                                               Navicula bacilliformis var. neglecta
                                               Navicula bacilliformis var. subcapitata
                                             Navicula bacillum
                                                   Navicula bacillum f. baicalensis
                                                   Navicula bacillum f. delicatula
                                                   Navicula bacillum f. gregoryana
                                                   Navicula bacillum f. lanceolata
                                                   Navicula bacillum f. trinodis
                                                   Navicula bacillum f. undulata
                                               Navicula bacillum var. capita
                                               Navicula bacillum var. densestriata
                                               Navicula bacillum var. elongata
                                               Navicula bacillum var. gregoryana
                                               Navicula bacillum var. hankensis
                                               Navicula bacillum var. jeniseyensis
                                               Navicula bacillum var. jogensis
                                               Navicula bacillum var. lepida
                                               Navicula bacillum var. major
                                               Navicula bacillum var. mexicana
                                               Navicula bacillum var. parallela
                                               Navicula bacillum var. rectangularis
                                               Navicula bacillum var. rostrata
                                             Navicula bacterium
                                             Navicula bacula
                                             Navicula bahiensis
                                             Navicula bahuensoides
                                             Navicula bahusiensis
                                               Navicula bahusiensis var. arctica
                                               Navicula bahusiensis var. istriana
                                             Navicula baicalensis
                                             Navicula baileyana
                                             Navicula baileyi
                                             Navicula bainii
                                             Navicula balcanica
                                             Navicula balearica
                                             Navicula balnearis
                                               Navicula balnearis var. major
                                             Navicula bamboiensis
                                             Navicula bannajensis
                                             Navicula bansoensis
                                             Navicula barbadense
                                             Navicula barbadensis
                                             Navicula barbara
                                               Navicula barbara var. densestriata
                                             Navicula barbarica
                                               Navicula barbarica var. robusta
                                             Navicula barberiana
                                             Navicula barbitos
                                             Navicula barclayana
                                             Navicula barentsii
                                             Navicula barkeriana
                                             Navicula barklayana
                                             Navicula barodensis
                                             Navicula barrowiana
                                             Navicula bartholomei
                                             Navicula basaltaeproxima
                                                   Navicula basaltaeproxima f. bigibba
                                                   Navicula basaltaeproxima f. recta
                                               Navicula basaltaeproxima var. longistriata
                                             Navicula basilica
                                             Navicula basillica
                                             Navicula bastianii
                                             Navicula bastowii
                                             Navicula bauemleri
                                             Navicula bauemlerii
                                               Navicula bauemlerii var. interrupta
                                             Navicula bawdiaensis
                                             Navicula bayleana
                                               Navicula bayleana var. septentrionalis
                                             Navicula bdesma
                                             Navicula beaufortiana
                                             Navicula beccariana
                                             Navicula beckii
                                             Navicula begeri
                                                   Navicula begeri f. constricta
                                             Navicula begerii
                                             Navicula beketowii
                                             Navicula bella
                                             Navicula bellatii
                                             Navicula belliatula
                                             Navicula bellissima
                                             Navicula belsesiensis
                                             Navicula bendaensis
                                             Navicula bengalensis
                                             Navicula bergenensis
                                             Navicula bergeni
                                             Navicula bergerii
                                             Navicula berriati
                                               Navicula berriati var. minor
                                               Navicula berriati var. splendida
                                             Navicula bertelsenii
                                             Navicula bertrandi
                                             Navicula besarensis
                                             Navicula beta
                                             Navicula beyrichiana
                                                   Navicula beyrichiana f. minor
                                               Navicula beyrichiana var. minor
                                             Navicula biaculeata
                                             Navicula biakensis
                                             Navicula bicapitata
                                               Navicula bicapitata var. constricta
                                               Navicula bicapitata var. sulcata
                                               Navicula bicapitata var. truncata
                                             Navicula bicapitellata
                                             Navicula bicarinata
                                             Navicula bicephala
                                               Navicula bicephala var. manguinii
                                             Navicula bicephaloides
                                             Navicula biceps
                                             Navicula biclavata
                                             Navicula biconica
                                             Navicula biconifera
                                             Navicula biconstricta
                                             Navicula bicontracta
                                             Navicula bicuneolus
                                             Navicula bicuspidata
                                             Navicula biddulphioides
                                             Navicula bidentula
                                             Navicula bievexa
                                             Navicula bifax
                                             Navicula bifissa
                                             Navicula biflexa
                                             Navicula bifurcatula
                                             Navicula bigemmata
                                             Navicula biglobosa
                                             Navicula bilineata
                                             Navicula bilobata
                                             Navicula bimaculata
                                             Navicula binaria
                                             Navicula binodis
                                               Navicula binodis var. capitata
                                             Navicula binodulosa
                                             Navicula bintila
                                             Navicula binziana
                                             Navicula bioculata
                                             Navicula bipectinalis
                                             Navicula bipunctata
                                             Navicula bipustulata
                                             Navicula birhis
                                             Navicula birostrata
                                             Navicula birostris
                                             Navicula biscalaris
                                             Navicula biseriata
                                             Navicula biskanterae
                                             Navicula biskanteri
                                             Navicula bistriata
                                             Navicula bisulcata
                                                   Navicula bisulcata f. major
                                               Navicula bisulcata var. turgidula
                                             Navicula bita
                                             Navicula bituminosa
                                               Navicula bituminosa var. chankensis
                                               Navicula bituminosa var. cincta
                                               Navicula bituminosa var. latecapitata
                                               Navicula bituminosa var. robusta
                                               Navicula bituminosa var. signata
                                               Navicula bituminosa var. staurophora
                                               Navicula bituminosa var. valida
                                             Navicula biwaensis
                                                   [Navicula rostellata var. biwaensis]
                                             Navicula bjoernoeyaensis
                                             Navicula blasii
                                             Navicula bleischiana
                                             Navicula bleischii
                                             Navicula blessingii
                                             Navicula blotii
                                             Navicula bodosensis
                                             Navicula boeckii
                                             Navicula boergesenii
                                             Navicula bogotensis
                                               Navicula bogotensis var. undulata
                                                     [Pinnularia bogotensis var. undulata (undata)]
                                                     [Pinnularia bogotensis var. uninterrupta (ininterrupta)]
                                             Navicula bolleana
                                               Navicula bolleana var. asymmetrica
                                               Navicula bolleana var. intermedia
                                               Navicula bolleana var. siberica
                                             Navicula bombiformis
                                             Navicula bomboides
                                               Navicula bomboides var. limanense
                                               Navicula bomboides var. media
                                               Navicula bomboides var. minor
                                             Navicula bombus
                                               Navicula bombus var. bombiformis
                                               Navicula bombus var. densestriata
                                               Navicula bombus var. egena
                                               Navicula bombus var. minor
                                             Navicula bongrainii
                                             Navicula bonnieri
                                             Navicula borbassii
                                             Navicula borealis
                                                   Navicula borealis f. minor
                                                   Navicula borealis f. robusta
                                                   Navicula borealis f. wagneri
                                               Navicula borealis var. caraccana
                                               Navicula borealis var. fossilis
                                               Navicula borealis var. linearis
                                               Navicula borealis var. major
                                               Navicula borealis var. minor
                                               Navicula borealis var. producta
                                               Navicula borealis var. truncata
                                             Navicula borinquensis
                                             Navicula borneoensis
                                             Navicula borowkae
                                             Navicula borrichii
                                               Navicula borrichii var. undulata
                                             Navicula borussica
                                             Navicula boryana
                                             Navicula boseana
                                               Navicula boseana var. bacillum
                                             Navicula bossvikensis
                                             Navicula bosumtwiensis
                                             Navicula botteriana
                                               Navicula botteriana var. minor
                                             Navicula bottnica
                                                   [Micromega smithii]
                                                   [Schizonema bottnicum]
                                                   [Schizonema smithii]
                                                   Navicula bottnica f. acuta
                                             Navicula boudetii
                                             Navicula bouhardi
                                             Navicula bourgi
                                             Navicula bourrellyi
                                             Navicula bourrellyivera
                                             Navicula boyei
                                             Navicula bozenae
                                             Navicula branchiata
                                             Navicula brasiliana
                                               Navicula brasiliana var. guadalupensis
                                             Navicula brasiliensis
                                                   Navicula brasiliensis f. constricta
                                               Navicula brasiliensis var. bicuneata
                                               Navicula brasiliensis var. fossilis
                                               Navicula brasiliensis var. minor
                                               Navicula brasiliensis var. notata
                                             Navicula brauniana
                                             Navicula braunii
                                               Navicula braunii var. moissacensis
                                             Navicula brebissonii
                                                   Navicula brebissonii f. lucida
                                               Navicula brebissonii var. angusta
                                               Navicula brebissonii var. attenuata
                                               Navicula brebissonii var. commutata
                                               Navicula brebissonii var. elongata
                                               Navicula brebissonii var. fossilis
                                               Navicula brebissonii var. intermedia
                                               Navicula brebissonii var. lanceolata
                                               Navicula brebissonii var. mormonorum
                                               Navicula brebissonii var. ovalis
                                               Navicula brebissonii var. subconstricta
                                             Navicula breenii
                                             Navicula brehmi
                                                   Navicula brehmi f. elongata
                                             Navicula brehmii
                                             Navicula brehmioides
                                             Navicula breitenbuchii
                                             Navicula brekkaensis
                                               Navicula brekkaensis var. andegavensis
                                               Navicula brekkaensis var. bigibba
                                               Navicula brekkaensis var. brekkaensoides
                                                     [Navicula brekkaensoides]
                                               Navicula brekkaensis var. lata
                                               Navicula brekkaensis var. trigibba
                                             Navicula bremensis
                                             Navicula bremeyeri
                                                   Navicula bremeyeri f. rostrata
                                               Navicula bremeyeri var. rostrata
                                             Navicula breviata
                                             Navicula brevirostrata
                                             Navicula brevis
                                                   Navicula brevis f. angustior
                                               Navicula brevis var. distoma
                                               Navicula brevis var. vexans
                                             Navicula brevissima
                                               Navicula brevissima var. africana
                                             Navicula brockmanni
                                               Navicula brockmanni var. enucleata
                                             Navicula brockmannii
                                               Navicula brockmannii var. undulata
                                             Navicula broetzii
                                             Navicula bruchi
                                             Navicula bruchii
                                             Navicula brunelii
                                             Navicula bruni
                                             Navicula brunii
                                             Navicula bruyanti
                                             Navicula bryophila
                                                   Navicula bryophila f. constricta
                                               Navicula bryophila var. Cholnoky
                                               Navicula bryophila var. bryophila
                                               Navicula bryophila var. capitata
                                               Navicula bryophila var. paucistriata
                                             Navicula bryophiloides
                                               Navicula bryophiloides var. linearis
                                             Navicula buccella
                                             Navicula buchansiana
                                             Navicula budayana
                                             Navicula budda
                                             Navicula budensis
                                             Navicula buderiformis
                                             Navicula bullata
                                               Navicula bullata var. carinata
                                               Navicula bullata var. moelleriana
                                               Navicula bullata var. obtusa
                                               Navicula bullata var. rhomboides
                                             Navicula bulnheimii
                                               Navicula bulnheimii var. belgica
                                               Navicula bulnheimii var. bulnheimii
                                               Navicula bulnheimii var. caspica
                                             Navicula burcki
                                             Navicula bushmanorum
                                             Navicula butreensis
                                             Navicula caddoensis
                                             Navicula caenosus
                                             Navicula calcuttensis
                                               Navicula calcuttensis var. gracillis
                                             Navicula caldwellii
                                             Navicula californica
                                               Navicula californica var. campechiana
                                               Navicula californica var. elliptica
                                             Navicula caliginosa
                                             Navicula calva
                                             Navicula calvata
                                             Navicula camerata
                                             Navicula campanilae
                                             Navicula campbellii
                                             Navicula campylodiscus
                                             Navicula canaliculata
                                             Navicula canalis
                                             Navicula canariana
                                             Navicula cancellata
                                                   [Navicula retusa var. cancellata]
                                                   Navicula cancellata f. constricta
                                                   Navicula cancellata f. minor
                                                   Navicula cancellata f. stauroneiformis
                                               Navicula cancellata var. ammophila
                                               Navicula cancellata var. gregorii
                                               Navicula cancellata var. impressa
                                               Navicula cancellata var. interrupta
                                               Navicula cancellata var. maroccana
                                               Navicula cancellata var. minuta
                                               Navicula cancellata var. retusa
                                                     [Pinnularia retusa]
                                                     [Schizonema retusum]
                                               Navicula cancellata var. scaldensis
                                               Navicula cancellata var. schmidtii
                                               Navicula cancellata var. subapiculata
                                               Navicula cancellata var. subretusa
                                             Navicula cancelleta
                                               Navicula cancelleta var. brasiliensis
                                             Navicula candida
                                             Navicula cantonatii
                                             Navicula cantonensis
                                             Navicula capensis
                                             Navicula capillata
                                             Navicula capitata
                                               Navicula capitata var. luneburgensis
                                             Navicula capitatoradiata
                                                   [Navicula cryptocephala var. intermedia]
                                                   [Navicula salinarum var. intermedia]
                                                   [Navicula salinarum var. intermedium]
                                             Navicula capitellata
                                             Navicula capitoradiata
                                             Navicula capitulata
                                               Navicula capitulata var. punensis
                                             Navicula capsa
                                             Navicula capsula
                                             Navicula caractacus
                                             Navicula carassius
                                             Navicula cardinaliculus
                                               Navicula cardinaliculus var. margaritacea
                                             Navicula cardinalis
                                               Navicula cardinalis var. africana
                                             Navicula carecti
                                             Navicula cari
                                                   [Navicula cincta var. cari]
                                                   Navicula cari f. indica
                                               Navicula cari var. cincta
                                               Navicula cari var. divergentissima
                                               Navicula cari var. minor
                                             Navicula caribaea
                                             Navicula carinata
                                             Navicula carinifera
                                               Navicula carinifera var. densius
                                               Navicula carinifera var. laxepunctata
                                               Navicula carinifera var. minor
                                             Navicula cariocincta
                                             Navicula carissima
                                             Navicula carloffii
                                             Navicula carminata
                                               Navicula carminata var. africana
                                             Navicula carolinensis
                                             Navicula carpathorum
                                               Navicula carpathorum var. bivittata
                                             Navicula carstensenii
                                             Navicula carteri
                                             Navicula carvajaliana
                                               Navicula carvajaliana var. attenuata
                                             Navicula casca
                                             Navicula cascadensis
                                             Navicula casertana
                                             Navicula cassieana
                                             Navicula castracanei
                                             Navicula catalanogermanica
                                             Navicula cataracta-rheni
                                             Navicula cataractarum
                                             Navicula catarinensis
                                             Navicula caterva
                                             Navicula catharinae
                                             Navicula caupulus
                                             Navicula cavernae
                                             Navicula ceciliae
                                             Navicula celinei
                                             Navicula cellesensis
                                             Navicula cendronii
                                             Navicula centraster
                                             Navicula centropunctata
                                             Navicula cephalodes
                                             Navicula ceratogramma
                                             Navicula ceratostigma
                                             Navicula ceres
                                             Navicula cerneutia
                                             Navicula cesatii
                                               Navicula cesatii var. exilis
                                             Navicula ceylanensis
                                             Navicula chaberti
                                             Navicula chadwickii
                                             Navicula chandolensis
                                               Navicula chandolensis var. capitata
                                             Navicula charcotii
                                               Navicula charcotii var. magellanica
                                             Navicula charlatii
                                                   Navicula charlatii f. chilensis
                                                   Navicula charlatii f. simplex
                                               Navicula charlatii var. chilensis
                                               Navicula charlatii var. lanceolata
                                             Navicula charlottae
                                             Navicula charontis
                                             Navicula chasei
                                             Navicula chasmaensis
                                             Navicula chasmigera
                                             Navicula chaspula
                                             Navicula chassagnei
                                             Navicula chauhanii
                                             Navicula cherubim
                                             Navicula chi
                                             Navicula chiarae
                                             Navicula chiengmaiensis
                                             Navicula chilena
                                             Navicula chilensis
                                             Navicula chimmoana
                                             Navicula chinensis
                                             Navicula chingmaiensis
                                             Navicula chloridorum
                                             Navicula cholnokyana
                                             Navicula cholnokyii
                                             Navicula chordata
                                             Navicula chrissiana
                                             Navicula chutteri
                                             Navicula chyzerii
                                             Navicula ciliata
                                             Navicula cimex
                                             Navicula cincta
                                                   Navicula cincta f. curta
                                                   Navicula cincta f. major
                                                   Navicula cincta f. sphagnicola
                                               Navicula cincta var. genuina
                                               Navicula cincta var. minuta
                                               Navicula cincta var. paucistriata
                                               Navicula cincta var. rostrata
                                               Navicula cincta var. siamensis
                                               Navicula cincta var. stricta
                                             Navicula cinctaeformis
                                             Navicula cingens
                                             Navicula cingulatoides
                                             Navicula cinna
                                             Navicula circumnodosa
                                             Navicula circumtexta
                                                   [Biremis circumtexta]
                                             Navicula circumvallata
                                             Navicula cistella
                                             Navicula citrea
                                             Navicula citriformis
                                             Navicula clagesii
                                             Navicula clamans
                                               Navicula clamans var. africana
                                               Navicula clamans var. minor
                                             Navicula clarensiana
                                             Navicula claromontensis
                                             Navicula clathrata
                                             Navicula clausa
                                             Navicula clavata
                                                   Navicula clavata f. corpulenta
                                                   Navicula clavata f. elliptica
                                                   Navicula clavata f. elongata
                                                   Navicula clavata f. indica
                                                   Navicula clavata f. minor
                                                   Navicula clavata f. minuta
                                                   Navicula clavata f. proxima
                                                   Navicula clavata f. rhombica
                                                   Navicula clavata f. subconstricta
                                                   Navicula clavata f. venustoides
                                               Navicula clavata var. caribaea
                                               Navicula clavata var. distenta
                                               Navicula clavata var. elliptica
                                               Navicula clavata var. elongata
                                               Navicula clavata var. indica
                                               Navicula clavata var. proxima
                                               Navicula clavata var. rhombica
                                               Navicula clavata var. venustoides
                                               Navicula clavata var. wrightii
                                             Navicula claviana
                                             Navicula claytoni
                                             Navicula claytonii
                                             Navicula clementis
                                                   [Navicula clementis var. rhombica]
                                                   [Navicula inclementis]
                                                   [Placoneis rhombica]
                                                   [Schizonema clementis]
                                                   Navicula clementis f. major
                                               Navicula clementis var. alaskaensis
                                               Navicula clementis var. japonica
                                               Navicula clementis var. linearis
                                               Navicula clementis var. quadristigmata
                                             Navicula clementoides
                                             Navicula climacospheniae
                                             Navicula cluthensis
                                                   Navicula cluthensis f. rostrata
                                                         [Navicula pseudoglacialis f. rostrata]
                                               Navicula cluthensis var. cluthensis
                                               Navicula cluthensis var. erythraea
                                               Navicula cluthensis var. finmarchica
                                               Navicula cluthensis var. maculifera
                                               Navicula cluthensis var. minuta
                                               Navicula cluthensis var. novae
                                               Navicula cluthensis var. producta
                                               Navicula cluthensis var. striolata
                                             Navicula cluthensoides
                                             Navicula clypeus
                                             Navicula coarctata
                                             Navicula coccinella
                                             Navicula cocconeiformis
                                                   Navicula cocconeiformis f. elliptica
                                               Navicula cocconeiformis var. bifurcata
                                               Navicula cocconeiformis var. capitata
                                               Navicula cocconeiformis var. oblonga
                                             Navicula cocconeoides
                                             Navicula cocconioides
                                             Navicula coccus
                                             Navicula cochlearis
                                             Navicula coei
                                             Navicula coelata
                                             Navicula coerulea
                                             Navicula coffeiformis
                                               Navicula coffeiformis var. densestriata
                                               Navicula coffeiformis var. subcircularis
                                             Navicula colii
                                             Navicula collersonii
                                             Navicula collertsonii
                                             Navicula collisiana
                                             Navicula columbiana
                                             Navicula columnaris
                                               Navicula columnaris var. undulata
                                             Navicula comerei
                                             Navicula commixta
                                             Navicula commutabilis
                                                   Navicula commutabilis f. lanceolata
                                             Navicula commutata
                                             Navicula comoides
                                                   [Navicula pseudocomoides]
                                             Navicula compacta
                                             Navicula compar
                                             Navicula comperei
                                             Navicula complanata
                                               Navicula complanata var. hyperborea
                                               Navicula complanata var. subinflata
                                             Navicula complanatoides
                                             Navicula completa
                                             Navicula completaoides
                                             Navicula compositestriata
                                               Navicula compositestriata var. rostrata
                                             Navicula compressicauda
                                             Navicula concamerata
                                             Navicula concentrica
                                                   [Navicula lanceolata var. cymbula]
                                             Navicula concilians
                                               Navicula concilians var. clevei
                                             Navicula concinna
                                             Navicula confecta
                                             Navicula confederata
                                             Navicula confervacea
                                                   Navicula confervacea f. rostrata
                                               Navicula confervacea var. baicalensis
                                               Navicula confervacea var. baikalensis
                                               Navicula confervacea var. laterostrata
                                               Navicula confervacea var. tenuis
                                             Navicula confidens
                                             Navicula congerana
                                             Navicula congolensis
                                             Navicula congrua
                                             Navicula conjugata
                                             Navicula conjuncta
                                             Navicula connectens
                                             Navicula conops
                                             Navicula consanguinea
                                             Navicula conscensa
                                             Navicula consentanea
                                             Navicula consimilis
                                             Navicula consors
                                             Navicula conspersa
                                             Navicula constans
                                               Navicula constans var. symmetrica
                                             Navicula constantinii
                                             Navicula constricta
                                               Navicula constricta var. linearis
                                             Navicula contempta
                                             Navicula contenta
                                                   Navicula contenta f. biceps
                                                   Navicula contenta f. elliptica
                                                   Navicula contenta f. elongata
                                                   Navicula contenta f. gigantea
                                                   Navicula contenta f. inflata
                                                   Navicula contenta f. parallela
                                                   Navicula contenta f. undulata
                                               Navicula contenta var. elliptica
                                               Navicula contenta var. opulenta
                                               Navicula contenta var. parallela
                                               Navicula contenta var. robusta
                                               Navicula contenta var. typica
                                             Navicula contentaeformis
                                             Navicula contermina
                                             Navicula contigua
                                             Navicula contorta
                                             Navicula contortula
                                             Navicula contracta
                                             Navicula contraria
                                             Navicula controversa
                                             Navicula conveniens
                                               Navicula conveniens var. rostrata
                                             Navicula convergens
                                             Navicula conveyi
                                             Navicula copiosa
                                             Navicula coquedensis
                                             Navicula coraliana
                                             Navicula corbieri
                                             Navicula cordillerae
                                             Navicula cornubiensis
                                             Navicula coronensis
                                               Navicula coronensis var. inflata
                                             Navicula corpulenta
                                             Navicula correpta
                                             Navicula corrugata
                                             Navicula cortanensis
                                             Navicula corticola
                                             Navicula corymbosa
                                             Navicula cosmaria
                                             Navicula costata
                                             Navicula costei
                                               Navicula costei var. bacillaris
                                             Navicula costulata
                                                   Navicula costulata f. curta
                                               Navicula costulata var. baikalensis
                                               Navicula costulata var. nipponica
                                               Navicula costulata var. sibirica
                                               Navicula costulata var. tenuirostris
                                             Navicula costuloides
                                             Navicula cotiformis
                                             Navicula couperi
                                             Navicula crabro
                                               Navicula crabro var. denticulata
                                               Navicula crabro var. intermedia
                                               Navicula crabro var. japonica
                                               Navicula crabro var. multicostata
                                               Navicula crabro var. nankoorensis
                                               Navicula crabro var. oranensis
                                               Navicula crabro var. pandura
                                             Navicula crabroniformis
                                             Navicula crassirostris
                                               Navicula crassirostris var. maasoensis
                                             Navicula crassula
                                             Navicula crassulexigua
                                             Navicula crassuliexigua
                                             Navicula crateri
                                             Navicula craticula
                                             Navicula craticularis
                                             Navicula craveni
                                             Navicula creguti
                                               Navicula creguti var. lanceolata
                                             Navicula cremeri
                                             Navicula cremorne
                                               Navicula cremorne var. salinarum
                                             Navicula crepitacula
                                             Navicula creuzbergensis
                                             Navicula creuzburgensis
                                               Navicula creuzburgensis var. multistriata
                                             Navicula criophila
                                                   [Pinnularia criophila]
                                             Navicula crispa
                                             Navicula cristata
                                                   [Navicula triplex]
                                               Navicula cristata var. curta
                                             Navicula cristula
                                             Navicula crocodili
                                             Navicula cronullensis
                                             Navicula crucialis
                                             Navicula cruciata
                                             Navicula crucicula
                                                   Navicula crucicula f. arctica
                                                   Navicula crucicula f. turkestanica
                                               Navicula crucicula var. alaskana
                                               Navicula crucicula var. barrowiana
                                               Navicula crucicula var. capitata
                                               Navicula crucicula var. crucicula
                                               Navicula crucicula var. cruciculoides
                                               Navicula crucicula var. lanceoleta
                                               Navicula crucicula var. minor
                                               Navicula crucicula var. minuta
                                               Navicula crucicula var. obtusata
                                               Navicula crucicula var. orientalis
                                               Navicula crucicula var. rostrata
                                             Navicula crucifera
                                                   [Pinnularia rostellata]
                                                   [Schizonema cruciferum]
                                               Navicula crucifera var. capitata
                                             Navicula crucifix
                                             Navicula cruciformis
                                               Navicula cruciformis var. brevior
                                               Navicula cruciformis var. seyschellensis
                                               Navicula cruciformis var. upolensis
                                             Navicula crucigera
                                               Navicula crucigera var. subhyalina
                                               Navicula crucigera var. typica
                                             Navicula crucigeriformis
                                             Navicula crux
                                             Navicula cruxmeridionalis
                                             Navicula cryophila
                                               Navicula cryophila var. stauroptera
                                             Navicula cryptocephala
                                                   [Navicula cryptocefalsa]
                                                   [Schizonema cryptocephalum]
                                                   Navicula cryptocephala f. minuta
                                                   Navicula cryptocephala f. nanissima
                                               Navicula cryptocephala var. australis
                                               Navicula cryptocephala var. hankensis
                                               Navicula cryptocephala var. lanceolata
                                               Navicula cryptocephala var. lata
                                               Navicula cryptocephala var. latior
                                               Navicula cryptocephala var. rhynchocephala
                                               Navicula cryptocephala var. veneta
                                                     [Navicula cryptocephala f. veneta]
                                                     [Navicula cryptocephala var. pumila]
                                                     [Navicula veneta]
                                             Navicula cryptocephaloides
                                                   Navicula cryptocephaloides f. angusta
                                               Navicula cryptocephaloides var. capitata
                                             Navicula cryptofallax
                                             Navicula cryptonella
                                                   [Navicula radiosa var. tenella]
                                             Navicula cryptorrhynchus
                                             Navicula cryptostriata
                                             Navicula cryptotenella
                                             Navicula cryptotenelloides
                                             Navicula csaszkaae
                                             Navicula cubitus
                                             Navicula cumbriensis
                                               Navicula cumbriensis var. minor
                                             Navicula cumvibia
                                             Navicula cunctans
                                             Navicula cuneata
                                             Navicula curiosa
                                             Navicula cursoria
                                             Navicula curta
                                               Navicula curta var. elongata
                                             Navicula curtestria
                                             Navicula curtisterna
                                             Navicula curvilineata
                                             Navicula curvinervia
                                             Navicula curvipunctata
                                             Navicula cuspidata
                                                   Navicula cuspidata f. angusta
                                                   Navicula cuspidata f. asymmetrica
                                                   Navicula cuspidata f. brevirostrata
                                                   Navicula cuspidata f. capitata
                                                   Navicula cuspidata f. crassa
                                                   Navicula cuspidata f. craticula
                                                   Navicula cuspidata f. creticularis
                                                   Navicula cuspidata f. danaica
                                                         [Navicula cuspidata var. danaica]
                                                         [Vanheurckia cuspidata var. danaica]
                                                   Navicula cuspidata f. diminuta
                                                   Navicula cuspidata f. elongata
                                                   Navicula cuspidata f. heribaudi
                                                         [Navicula cuspidata var. heribaudi]
                                                         [Navicula elsae thum]
                                                   Navicula cuspidata f. heribaudii
                                                   Navicula cuspidata f. indica
                                                   Navicula cuspidata f. longicollis
                                                   Navicula cuspidata f. minor
                                                   Navicula cuspidata f. obtusa
                                                   Navicula cuspidata f. primigena
                                                   Navicula cuspidata f. robusta
                                                   Navicula cuspidata f. rostrata
                                                   Navicula cuspidata f. subcapitata
                                                   Navicula cuspidata f. subrostrata
                                                   Navicula cuspidata f. tenuirostris
                                               Navicula cuspidata var. alaskaensis
                                               Navicula cuspidata var. alpestris
                                               Navicula cuspidata var. amphisphenia
                                               Navicula cuspidata var. conspicua
                                               Navicula cuspidata var. cuspidata
                                               Navicula cuspidata var. fulva
                                               Navicula cuspidata var. genuina
                                               Navicula cuspidata var. hankae
                                               Navicula cuspidata var. lanceolata
                                               Navicula cuspidata var. major
                                               Navicula cuspidata var. maxima
                                               Navicula cuspidata var. mayeri
                                               Navicula cuspidata var. minima
                                               Navicula cuspidata var. minor
                                               Navicula cuspidata var. obtusa
                                               Navicula cuspidata var. subrostrata
                                               Navicula cuspidata var. tibetica
                                             Navicula cuspis
                                             Navicula cuvella
                                             Navicula cyclophora
                                             Navicula cyclops
                                             Navicula cymbelliformis
                                             Navicula cymbelloides
                                             Navicula cymbula
                                             Navicula cyprinus
                                               Navicula cyprinus var. linearis
                                             Navicula czekehazensis
                                             Navicula d?czii
                                             Navicula dactylus
                                               Navicula dactylus var. argentina
                                               Navicula dactylus var. lata
                                               Navicula dactylus var. minor
                                             Navicula dahomensis
                                             Navicula dahurica
                                               Navicula dahurica var. elliptica
                                             Navicula dailyi
                                             Navicula dalmatica
                                             Navicula damasii
                                             Navicula damongensis
                                             Navicula dariana
                                                   Navicula dariana f. minor
                                               Navicula dariana var. miocenica
                                             Navicula dartevellei
                                             Navicula darwiniana
                                             Navicula davidsoniana
                                             Navicula de-toniana
                                             Navicula de-wittiana
                                             Navicula dealpina
                                             Navicula debegenica
                                             Navicula debilis
                                             Navicula debilissima
                                             Navicula debilitata
                                             Navicula deblockii
                                             Navicula debyi
                                             Navicula dechambrei
                                             Navicula decipiens
                                             Navicula decissa
                                             Navicula declinata
                                             Navicula decora
                                             Navicula decrescens
                                             Navicula decumana
                                             Navicula decurrens
                                                   Navicula decurrens f. tenuior
                                               Navicula decurrens var. curtecostata
                                               Navicula decurrens var. subsolaris
                                             Navicula decussata
                                             Navicula decussepunctata
                                             Navicula definita
                                               Navicula definita var. intermedia
                                             Navicula defluens
                                             Navicula degenii
                                             Navicula dehissa
                                             Navicula delastriata
                                             Navicula delata
                                             Navicula delawarensis
                                               Navicula delawarensis var. clevei
                                             Navicula delecta
                                             Navicula delginensis
                                             Navicula deliberata
                                             Navicula delicata
                                             Navicula delicatula
                                             Navicula delognei
                                                   Navicula delognei f. elliptica
                                             Navicula delpiroui
                                             Navicula delta
                                             Navicula deltaica
                                             Navicula demerara
                                                   [Schizonema demerara]
                                             Navicula demerarae
                                             Navicula demeraroides
                                             Navicula demissa
                                             Navicula demta
                                             Navicula denizotii
                                             Navicula densa
                                               Navicula densa var. fossilis
                                             Navicula denselineolata
                                             Navicula densepunctata
                                             Navicula densestriata
                                               Navicula densestriata var. acuta
                                             Navicula densilineolata
                                                   [Navicula pseudolanceolata var. denselineolata]
                                             Navicula densistriata
                                               Navicula densistriata var. acuta
                                             Navicula densuensis
                                             Navicula denticulata
                                             Navicula denudata
                                             Navicula depauxii
                                             Navicula depressa
                                             Navicula derasa
                                               Navicula derasa var. erosa
                                               Navicula derasa var. gracilenta
                                               Navicula derasa var. transitans
                                             Navicula descripta
                                               Navicula descripta var. arctica
                                             Navicula deserti
                                             Navicula destituta
                                             Navicula detenta
                                             Navicula detersa
                                             Navicula diabolica
                                             Navicula diaculus
                                             Navicula diagonalis
                                             Navicula diahotana
                                             Navicula diaphana
                                             Navicula diaphanea
                                             Navicula dibola
                                             Navicula dicephala
                                                   Navicula dicephala f. australis
                                                   Navicula dicephala f. capitata
                                                   Navicula dicephala f. intermedia
                                                   Navicula dicephala f. pygmaea
                                               Navicula dicephala var. chilensis
                                               Navicula dicephala var. constricta
                                               Navicula dicephala var. genuina
                                               Navicula dicephala var. minor
                                               Navicula dicephala var. neglecta
                                               Navicula dicephala var. subcapitata
                                                     [Navicula elginensis var. subcapitata]
                                                     [Placoneis dicephala var. subcapitata]
                                               Navicula dicephala var. triundulata
                                               Navicula dicephala var. undulata
                                             Navicula dicephaloides
                                             Navicula dicephela
                                               Navicula dicephela var. undulata
                                             Navicula dicurvata
                                             Navicula didyma
                                               Navicula didyma var. andesitica
                                             Navicula diengensis
                                             Navicula differta
                                             Navicula difficilis
                                             Navicula difficillima
                                             Navicula difficillimoides
                                             Navicula difformis
                                             Navicula diffusa
                                               Navicula diffusa var. balearica
                                               Navicula diffusa var. minor
                                             Navicula dificilis
                                             Navicula digito-radiata
                                                   Navicula digito-radiata f. ceylonica
                                                   Navicula digito-radiata f. linearis
                                               Navicula digito-radiata var. aegyptiaca
                                               Navicula digito-radiata var. angustior
                                               Navicula digito-radiata var. arctica
                                               Navicula digito-radiata var. elliptica
                                               Navicula digito-radiata var. linearis
                                               Navicula digito-radiata var. minima
                                               Navicula digito-radiata var. obesa
                                               Navicula digito-radiata var. rostrata
                                               Navicula digito-radiata var. seychellensis
                                             Navicula digitoconvergens
                                                   [Navicula digitoradiata var. minor]
                                             Navicula digitoradiata
                                                   Navicula digitoradiata f. linearis
                                                   Navicula digitoradiata f. minor
                                                   Navicula digitoradiata f. obtusata
                                               Navicula digitoradiata var. cubaensis
                                               Navicula digitoradiata var. cyprinus
                                               Navicula digitoradiata var. minima
                                               Navicula digitoradiata var. rotindus
                                             Navicula digitulus
                                                   [Navicula subprocera]
                                             Navicula digna
                                             Navicula digrediens
                                             Navicula digtoradiata
                                             Navicula dilata
                                             Navicula dilatata
                                             Navicula dilucida
                                             Navicula dimidiata
                                             Navicula diomphala
                                             Navicula diploneiformis
                                             Navicula diplosticta
                                             Navicula directa
                                                   [Pinnularia directa]
                                               Navicula directa var. angusta
                                               Navicula directa var. constricta
                                               Navicula directa var. cuneata
                                               Navicula directa var. decussatim
                                               Navicula directa var. derasa
                                               Navicula directa var. genuina
                                               Navicula directa var. heterostriata
                                               Navicula directa var. incus
                                               Navicula directa var. javanica
                                               Navicula directa var. lata
                                               Navicula directa var. oceanica
                                               Navicula directa var. planctonica
                                               Navicula directa var. remota
                                                     [Navicula remota]
                                               Navicula directa var. rostrata
                                               Navicula directa var. subtilis
                                                     [Navicula acutiuscula]
                                                     [Pinnularia subtilis]
                                             Navicula dirhynchus
                                             Navicula dirrhombus
                                             Navicula discernenda
                                             Navicula disclusa
                                             Navicula discrepans
                                             Navicula disertoides
                                             Navicula disjuncta
                                                   Navicula disjuncta f. anglica
                                             Navicula disjunctoides
                                             Navicula dispar
                                             Navicula disparalis
                                             Navicula disparata
                                             Navicula dispensata
                                                   Navicula dispensata f. constricta
                                                   Navicula dispensata f. rostrata
                                             Navicula dispersa
                                                   Navicula dispersa f. constricta
                                                   Navicula dispersa f. rostrata
                                             Navicula dispersepunctata
                                             Navicula dispersepunctulata
                                             Navicula disposita
                                                   Navicula disposita f. minor
                                             Navicula disputans
                                             Navicula dissimilis
                                             Navicula dissipata
                                             Navicula dissuta
                                             Navicula distans
                                                   [Pinnularia distans]
                                               Navicula distans var. borealis
                                             Navicula distantepunctata
                                             Navicula distauridium
                                             Navicula distenta
                                             Navicula disticha
                                             Navicula distincta
                                             Navicula distinctastriata
                                             Navicula distoma
                                                   Navicula distoma f. angustior
                                                   Navicula distoma f. latior
                                             Navicula diuturna
                                             Navicula diuturnoides
                                             Navicula divaricata
                                             Navicula divergens
                                                   Navicula divergens f. major
                                                   Navicula divergens f. minor
                                               Navicula divergens var. laticeps
                                               Navicula divergens var. longa
                                               Navicula divergens var. prolongata
                                               Navicula divergens var. undulato
                                             Navicula diversa
                                             Navicula diversestriata
                                             Navicula diversipunctata
                                             Navicula diversistriata
                                             Navicula diverta
                                             Navicula dobrinatemniskovae
                                             Navicula dodowaensis
                                             Navicula doehleri
                                             Navicula doello-juradoi
                                             Navicula doeringii
                                               Navicula doeringii var. cryptocephala
                                               Navicula doeringii var. undulata
                                             Navicula doljensis
                                             Navicula dolomitica
                                               Navicula dolomitica var. fossilis
                                             Navicula dolosa
                                             Navicula domiciliensis
                                             Navicula donkinia
                                             Navicula dorenbergi
                                             Navicula dorogostaiskyi
                                             Navicula dosseti-azpeitia
                                             Navicula dubia
                                               Navicula dubia var. acuta
                                               Navicula dubia var. signata
                                             Navicula dubitata
                                             Navicula dubravicensis
                                               Navicula dubravicensis var. gallica
                                             Navicula duerrenbergiana
                                                   [Navicula stundlii]
                                             Navicula dugaensis
                                             Navicula dulcioides
                                             Navicula dulcis
                                             Navicula dumontiae
                                             Navicula dunstonii
                                             Navicula duomedia
                                             Navicula duplex
                                             Navicula duplicata
                                             Navicula duplocapitata
                                             Navicula durandii
                                                   Navicula durandii f. rhomboidea
                                               Navicula durandii var. intermedia
                                               Navicula durandii var. rhomboidea
                                             Navicula dutoitana
                                             Navicula dux
                                             Navicula dvorachekii
                                             Navicula dystrophica
                                             Navicula ebor
                                             Navicula eburnea
                                             Navicula ectoris
                                             Navicula effrenata
                                             Navicula egena
                                             Navicula egeria
                                             Navicula egregia
                                                   Navicula egregia f. elongata
                                                   Navicula egregia f. fennica
                                             Navicula egyptiaca
                                             Navicula ehrenbergii
                                             Navicula ehrlichiae
                                             Navicula eichhorniaephila
                                             Navicula eichhorniophila
                                               Navicula eichhorniophila var. peracuta
                                             Navicula eichorniaephila
                                             Navicula eidrigeana
                                             Navicula eidrigiana
                                             Navicula eiowana
                                             Navicula ekholmensis
                                             Navicula el-kab
                                             Navicula elaborata
                                             Navicula elaphros
                                             Navicula electa
                                             Navicula electrolytifuga
                                             Navicula elegans
                                                   Navicula elegans f. crowbillensis
                                               Navicula elegans var. cuspidata
                                             Navicula elegantissima
                                             Navicula elegantoides
                                             Navicula elegantula
                                             Navicula elenkinii
                                             Navicula elephantis
                                             Navicula elesdiana
                                             Navicula elevata
                                             Navicula elginensis
                                               Navicula elginensis var. cuneata
                                               Navicula elginensis var. neglecta
                                             Navicula elkab
                                                   Navicula elkab f. subcapitata
                                             Navicula ellips
                                             Navicula ellipsis
                                             Navicula elliptica
                                                   Navicula elliptica f. duplo
                                                   Navicula elliptica f. extenta
                                                   Navicula elliptica f. inflata
                                                   Navicula elliptica f. minor
                                                   Navicula elliptica f. parallela
                                               Navicula elliptica var. cocconeoides
                                               Navicula elliptica var. costata
                                               Navicula elliptica var. davidsonii
                                               Navicula elliptica var. fossilis
                                               Navicula elliptica var. grosse
                                               Navicula elliptica var. ladogensis
                                               Navicula elliptica var. maeotica
                                               Navicula elliptica var. major
                                               Navicula elliptica var. minima
                                               Navicula elliptica var. minor
                                               Navicula elliptica var. ovalis
                                               Navicula elliptica var. parva
                                               Navicula elliptica var. quilinoi
                                               Navicula elliptica var. rostellata
                                               Navicula elliptica var. tropica
                                             Navicula elmorei
                                             Navicula elongata
                                             Navicula elongatula
                                             Navicula elpatievskyi
                                             Navicula elsoniana
                                             Navicula emarginata
                                             Navicula endophytica
                                             Navicula engelbrechtii
                                             Navicula ennediensis
                                             Navicula entoleia
                                               Navicula entoleia var. minor
                                             Navicula entomon
                                               Navicula entomon var. thaitiana
                                             Navicula entzii
                                             Navicula enucleata
                                             Navicula eocaenica
                                             Navicula episcopalis
                                                   Navicula episcopalis f. lata
                                               Navicula episcopalis var. robusta
                                             Navicula eponka
                                             Navicula epsilon
                                             Navicula equiornata
                                             Navicula erdmannensis
                                             Navicula ergadensis
                                                   [Caloneis blanda]
                                                   [Navicula blanda]
                                               Navicula ergadensis var. minor
                                                     [Navicula blanda var. minor]
                                             Navicula erifuga
                                                   [Navicula cincta var. leptocephala]
                                                   [Navicula heufleri var. leptocephala]
                                                   [Navicula leptocephala]
                                             Navicula erosa
                                               Navicula erosa var. crassa
                                               Navicula erosa var. elegans
                                             Navicula erythraea
                                             Navicula esamangensis
                                             Navicula escambia
                                                   [Navicula schroeteri var. escambia]
                                             Navicula esoculus
                                                   Navicula esoculus f. elongata
                                             Navicula esox
                                               Navicula esox var. recta
                                             Navicula eta
                                             Navicula eugeniae
                                             Navicula eumontana
                                             Navicula euryale
                                             Navicula eurycephala
                                             Navicula eurysoma
                                             Navicula evexa
                                             Navicula evulsa
                                             Navicula exasperans
                                             Navicula excavata
                                               Navicula excavata subsp. hungarica
                                               Navicula excavata var. angelorum
                                             Navicula excellens
                                             Navicula excentrica
                                                   Navicula excentrica f. curta
                                             Navicula excepta
                                             Navicula exemta
                                             Navicula exigua
                                                   Navicula exigua f. minor
                                                   Navicula exigua f. stigmata
                                                   Navicula exigua f. transitoria
                                                   Navicula exigua f. undulata
                                               Navicula exigua var. alaskaensis
                                               Navicula exigua var. calcuttensis
                                               Navicula exigua var. capitata
                                               Navicula exigua var. elliptica
                                               Navicula exigua var. lanceolata
                                               Navicula exigua var. signata
                                               Navicula exigua var. sinica
                                             Navicula exiguiformis
                                                   Navicula exiguiformis f. elliptica
                                                   Navicula exiguiformis f. undulata
                                               Navicula exiguiformis var. von
                                             Navicula exiguoides
                                             Navicula exiguoidis
                                             Navicula exiliformis
                                             Navicula exilior
                                             Navicula exilis
                                                   [Brachysira exilis]
                                                   [Navicula cryptocephala var. exilis]
                                                   [Navicula cryptocephala var. minor]
                                                   [Schizonema exile]
                                             Navicula exilissima
                                               Navicula exilissima var. dubia
                                             Navicula exillima
                                             Navicula eximia
                                                   [Caloneis eximia]
                                             Navicula expecta
                                             Navicula expectilis
                                               Navicula expectilis var. producta
                                             Navicula expedita
                                             Navicula expeditionis
                                             Navicula explanata
                                               Navicula explanata var. lanceolata
                                             Navicula expleta
                                             Navicula explicata
                                             Navicula explicatoides
                                             Navicula explorata
                                             Navicula eymei
                                             Navicula faba
                                             Navicula faceta
                                             Navicula facilis
                                             Navicula falaisiensis
                                                   Navicula falaisiensis f. capitula
                                               Navicula falaisiensis var. capitata
                                               Navicula falaisiensis var. lanceola
                                               Navicula falaisiensis var. nipponica
                                             Navicula falax
                                             Navicula falklandiae
                                             Navicula fallax
                                             Navicula falsalyra
                                             Navicula famintzinii
                                             Navicula faoensis
                                             Navicula farakulumensis
                                             Navicula farcimen
                                             Navicula farta
                                             Navicula fasciata
                                               Navicula fasciata var. fontinalis
                                               Navicula fasciata var. gigantea
                                               Navicula fasciata var. inflata
                                               Navicula fasciata var. marcata
                                               Navicula fasciata var. miramaris
                                             Navicula fatigans
                                             Navicula fauta
                                               Navicula fauta var. cubaensis
                                             Navicula favus
                                             Navicula fawumangensis
                                             Navicula febigeri
                                             Navicula febigerii
                                             Navicula fennica
                                             Navicula fennoscandica
                                             Navicula fernandae
                                             Navicula fernandesii
                                             Navicula fernandi-koburg
                                             Navicula ferrazae
                                             Navicula festiva
                                                   Navicula festiva f. latior
                                             Navicula feuerborni
                                                   Navicula feuerborni f. africana
                                               Navicula feuerborni var. rostrata
                                             Navicula feuerbornii
                                                   Navicula feuerbornii f. minor
                                             Navicula filarszkyana
                                             Navicula filarszkyi
                                             Navicula filholi
                                             Navicula filiformis
                                             Navicula finitima
                                             Navicula finmarchica
                                               Navicula finmarchica var. elliptica
                                             Navicula finnmarchica
                                             Navicula firma
                                                   Navicula firma f. triundulata
                                               Navicula firma var. cuneata
                                               Navicula firma var. diminuta
                                               Navicula firma var. genuina
                                               Navicula firma var. major
                                               Navicula firma var. scoliopleuroides
                                               Navicula firma var. tumescens
                                             Navicula fischeri
                                             Navicula flabellata
                                             Navicula flagellifera
                                             Navicula flahaulti
                                             Navicula flamma
                                             Navicula flammarionensis
                                             Navicula flammula
                                             Navicula flanatica
                                                   [Navicula ammophila var. flanatica]
                                                   [Navicula angustata var. flanatica]
                                               Navicula flanatica var. ammophila
                                               Navicula flanatica var. tenuis
                                             Navicula flattii
                                             Navicula flebilis
                                             Navicula flexuosa
                                               Navicula flexuosa var. cuneata
                                             Navicula florentina
                                             Navicula floridae
                                             Navicula floridana
                                             Navicula florinae
                                             Navicula floriniae
                                             Navicula fluens
                                               Navicula fluens var. baikalensis
                                               Navicula fluens var. linearis
                                               Navicula fluens var. subrostrata
                                             Navicula fluitans
                                               Navicula fluitans var. biconvexa
                                               Navicula fluitans var. cuneoquadrata
                                             Navicula fluminensis
                                               Navicula fluminensis var. floridana
                                               Navicula fluminensis var. kerguelensis
                                             Navicula fluminisirtysch
                                             Navicula fluminitica
                                             Navicula fluviae-jenisseyi
                                             Navicula foliola
                                             Navicula folium
                                             Navicula fontana
                                             Navicula fontellii
                                             Navicula fonticola
                                             Navicula fontinalis
                                             Navicula forcipata
                                               Navicula forcipata var. densestriata
                                               Navicula forcipata var. densistriata
                                               Navicula forcipata var. minima
                                               Navicula forcipata var. minor
                                               Navicula forcipata var. nummularia
                                               Navicula forcipata var. nummularioides
                                               Navicula forcipata var. punctata
                                               Navicula forcipata var. spatiata
                                               Navicula forcipata var. suborbicularis
                                               Navicula forcipata var. versicolor
                                             Navicula formenterae
                                             Navicula formica
                                             Navicula formicata
                                             Navicula formicina
                                             Navicula formosa
                                               Navicula formosa var. cuneata
                                               Navicula formosa var. fossilis
                                               Navicula formosa var. intermedia
                                               Navicula formosa var. jaguaripensis
                                               Navicula formosa var. maxima
                                             Navicula fortis
                                                   [Pinnularia constricta]
                                                   [Pinnularia fortis]
                                                   Navicula fortis f. minor
                                               Navicula fortis var. opima
                                             Navicula fortunata
                                             Navicula fossilioides
                                             Navicula fossilis
                                             Navicula fragilarioides
                                               Navicula fragilarioides var. laevissima
                                             Navicula fragilis
                                             Navicula franciscae
                                             Navicula frasnensis
                                             Navicula fraudulenta
                                             Navicula freesei
                                             Navicula frenguellii
                                             Navicula frequens
                                                   Navicula frequens f. major
                                             Navicula frickei
                                             Navicula friesneri
                                             Navicula frigida
                                             Navicula frisiae
                                             Navicula friska
                                             Navicula fritschii
                                             Navicula fromenterae
                                             Navicula frugalis
                                             Navicula frustuliaeformis
                                             Navicula frustuloides
                                             Navicula fuchsii
                                             Navicula fuegiana
                                               Navicula fuegiana var. rostrata
                                               Navicula fuegiana var. yberiensis
                                             Navicula fuenzalidae
                                             Navicula fukiensis
                                             Navicula fulva
                                                   Navicula fulva f. asymmetrica
                                               Navicula fulva var. modesta
                                             Navicula fundata
                                             Navicula funiculata
                                             Navicula fusca
                                               Navicula fusca var. excisa
                                               Navicula fusca var. major
                                               Navicula fusca var. permagna
                                             Navicula fuscata
                                             Navicula fusidium
                                             Navicula fusiformis
                                               Navicula fusiformis var. ostrearia
                                             Navicula fusiformis-vahliana
                                             Navicula fusioides
                                             Navicula fustis
                                             Navicula fusus
                                             Navicula futilis
                                             Navicula gainii
                                             Navicula galapagoensis
                                             Navicula galea
                                             Navicula galikii
                                                   [Navicula gastrum var. galikii]
                                             Navicula gallapagensis
                                               Navicula gallapagensis var. japonica
                                             Navicula gallica
                                               Navicula gallica var. laevissima
                                               Navicula gallica var. montana
                                               Navicula gallica var. nitzschioides
                                             Navicula galvagensis
                                             Navicula gamma
                                               Navicula gamma var. rectilineata
                                             Navicula gandhii
                                             Navicula gandrupi
                                                   [Pinnularia gandrupi]
                                               Navicula gandrupi var. simplex
                                             Navicula garganica
                                             Navicula garkeana
                                             Navicula gasilidei
                                               Navicula gasilidei var. major
                                               Navicula gasilidei var. minor
                                             Navicula gastriformis
                                             Navicula gastroides
                                               Navicula gastroides var. elliptica
                                             Navicula gastrum
                                                   Navicula gastrum f. elliptica
                                                   Navicula gastrum f. lanceolata
                                                   Navicula gastrum f. major
                                                   Navicula gastrum f. maxima
                                                   Navicula gastrum f. minor
                                                   Navicula gastrum f. minuta
                                                   Navicula gastrum f. nipponica
                                                   Navicula gastrum f. rostrata
                                               Navicula gastrum var. baicalensis
                                               Navicula gastrum var. bistigmata
                                               Navicula gastrum var. boryana
                                               Navicula gastrum var. capitata
                                               Navicula gastrum var. elliptica
                                               Navicula gastrum var. genuina
                                               Navicula gastrum var. hankensis
                                               Navicula gastrum var. intermedia
                                               Navicula gastrum var. jenisseyensis
                                               Navicula gastrum var. latiuscula
                                               Navicula gastrum var. limnetica
                                               Navicula gastrum var. maxima
                                               Navicula gastrum var. minima
                                               Navicula gastrum var. minor
                                               Navicula gastrum var. mongolica
                                               Navicula gastrum var. remote
                                               Navicula gastrum var. signata
                                               Navicula gastrum var. transvaalensis
                                               Navicula gastrum var. turgida
                                             Navicula gaussii
                                             Navicula gauthieri
                                               Navicula gauthieri var. producta
                                             Navicula gebhardi
                                             Navicula gebhardii
                                             Navicula geinitzi
                                             Navicula geisslerae
                                             Navicula geitleri
                                               Navicula geitleri var. asymmetrica
                                             Navicula gelida
                                               Navicula gelida var. antarctica
                                               Navicula gelida var. asymmetrica
                                               Navicula gelida var. latiuscula
                                               Navicula gelida var. manitounukensis
                                               Navicula gelida var. minor
                                               Navicula gelida var. parvula
                                               Navicula gelida var. perpusilla
                                               Navicula gelida var. radissonii
                                               Navicula gelida var. subimpressa
                                               Navicula gelida var. tenuis
                                             Navicula gemina
                                                   Navicula gemina f. minuta
                                               Navicula gemina var. densestriata
                                               Navicula gemina var. egena
                                             Navicula geminata
                                             Navicula gemmata
                                               Navicula gemmata var. fossilis
                                               Navicula gemmata var. mediterranea
                                             Navicula gemmatula
                                             Navicula gemmeta
                                               Navicula gemmeta var. biseriata
                                             Navicula gendrei
                                               Navicula gendrei var. intermedia
                                             Navicula genevensis
                                             Navicula geniculata
                                             Navicula genifera
                                             Navicula genovefae
                                             Navicula genustriata
                                             Navicula gerloffi
                                               Navicula gerloffi var. lanceolata
                                             Navicula gerloffii
                                                   Navicula gerloffii f. lanceolata
                                             Navicula germanopolonica
                                             Navicula geronimensis
                                             Navicula gibba
                                                   Navicula gibba f. major
                                               Navicula gibba var. hyalina
                                               Navicula gibba var. major
                                               Navicula gibba var. minor
                                               Navicula gibba var. packii
                                               Navicula gibba var. tabellaria
                                               Navicula gibba var. undulata
                                             Navicula gibberula
                                               Navicula gibberula var. oblonga
                                             Navicula gibbosa
                                             Navicula gibbula
                                                   Navicula gibbula f. undulata
                                               Navicula gibbula var. cantalica
                                               Navicula gibbula var. capitata
                                               Navicula gibbula var. elliptica
                                               Navicula gibbula var. inflata
                                               Navicula gibbula var. oblonga
                                               Navicula gibbula var. terrestris
                                               Navicula gibbula var. undulata
                                             Navicula giebelii
                                             Navicula gieskesii
                                             Navicula gigantorum
                                             Navicula gigas
                                               Navicula gigas var. gracilis
                                             Navicula gilva
                                             Navicula girodi
                                             Navicula girondica
                                             Navicula glaberrima
                                             Navicula glaberrimum
                                             Navicula glabra
                                             Navicula glabrissima
                                             Navicula glabriuscula
                                               Navicula glabriuscula var. ellipsoidalis
                                             Navicula glacialis
                                               Navicula glacialis var. angusta
                                               Navicula glacialis var. elongata
                                               Navicula glacialis var. hudsonii
                                               Navicula glacialis var. inaequalis
                                               Navicula glacialis var. lanceoclata
                                               Navicula glacialis var. septentrionalis
                                             Navicula glaciei
                                             Navicula glangeaudi
                                             Navicula glans
                                             Navicula glasovii
                                             Navicula globiceps
                                                   Navicula globiceps f. gracile
                                               Navicula globiceps var. krockii
                                             Navicula globifera
                                             Navicula globosa
                                             Navicula globosaoides
                                             Navicula globulifera
                                               Navicula globulifera var. nipponnica
                                               Navicula globulifera var. robusta
                                             Navicula globuliferiformis
                                             Navicula glomus
                                             Navicula gloriosa
                                               Navicula gloriosa var. inflata
                                             Navicula godfroyi
                                             Navicula goeppertiana
                                               Navicula goeppertiana var. dapaliformis
                                               Navicula goeppertiana var. dapalis
                                               Navicula goeppertiana var. monita
                                               Navicula goeppertiana var. peguana
                                             Navicula goersii
                                             Navicula gomontiana
                                             Navicula gomphonemacea
                                             Navicula gomphonemoides
                                             Navicula gondwana
                                             Navicula gonzalvesiana
                                             Navicula gordonii
                                             Navicula gorjanovicii
                                               Navicula gorjanovicii var. major
                                               Navicula gorjanovicii var. minor
                                             Navicula gothlandica
                                             Navicula gotlandica
                                                   Navicula gotlandica f. minor
                                             Navicula gottlandica
                                                   [Schizonema gottlandicum]
                                             Navicula gourdonii
                                             Navicula gouwsii
                                             Navicula gracilis
                                                   Navicula gracilis f. constricta
                                                   Navicula gracilis f. cuneata
                                                   Navicula gracilis f. laevis
                                                   Navicula gracilis f. minor
                                                   Navicula gracilis f. minutissima
                                               Navicula gracilis var. antarctica
                                               Navicula gracilis var. cincta
                                               Navicula gracilis var. genuina
                                               Navicula gracilis var. obesa
                                               Navicula gracilis var. recurva
                                             Navicula gracillima
                                               Navicula gracillima var. linearis
                                               Navicula gracillima var. lucida
                                               Navicula gracillima var. tenuis
                                             Navicula graciloides
                                                   Navicula graciloides f. minutissima
                                               Navicula graciloides var. barodensis
                                             Navicula gradata
                                             Navicula gradatoides
                                             Navicula graeffii
                                             Navicula gralana
                                             Navicula grammitis
                                             Navicula granii
                                                   [Stauroneis granii]
                                             Navicula granoryza
                                             Navicula granulata
                                                   Navicula granulata f. minor
                                               Navicula granulata var. japonica
                                               Navicula granulata var. javanica
                                               Navicula granulata var. peragallorum
                                               Navicula granulata var. sublinearis
                                             Navicula granulifera
                                             Navicula granum
                                             Navicula granum-avenae
                                             Navicula grasmueckii
                                             Navicula grata
                                             Navicula gratissima
                                             Navicula gregaria
                                                   [Navicula gregalis]
                                                   [Schizonema gregarium]
                                               Navicula gregaria var. genuina
                                               Navicula gregaria var. rostellata
                                               Navicula gregaria var. thurholmensis
                                             Navicula gregarioides
                                                   Navicula gregarioides f. lata
                                             Navicula gregoriana
                                             Navicula gregorii
                                             Navicula gretharum
                                             Navicula grevilleana
                                             Navicula grevillei
                                               Navicula grevillei var. apiculata
                                               Navicula grevillei var. arbusta
                                               Navicula grevillei var. comoides
                                               Navicula grevillei var. pararhombica
                                               Navicula grevillei var. remotiva
                                             Navicula grevilleoides
                                             Navicula grevillii
                                             Navicula grimmei
                                               Navicula grimmei var. castelli
                                               Navicula grimmei var. producta
                                               Navicula grimmei var. rostellata
                                             Navicula grimmeioides
                                             Navicula grimmii
                                             Navicula grimmioides
                                             Navicula grippii
                                             Navicula groenlandica
                                             Navicula groschopfi
                                             Navicula groschopfii
                                             Navicula grovei
                                             Navicula grudeensis
                                             Navicula gruendleri
                                               Navicula gruendleri var. angusta
                                               Navicula gruendleri var. symmetrica
                                             Navicula gruendleriana
                                             Navicula grundtvigii
                                             Navicula grunovii
                                                   Navicula grunovii f. minor
                                             Navicula grunowii
                                             Navicula guadalupensis
                                             Navicula guarujana
                                             Navicula guatemalensis
                                               Navicula guatemalensis var. minor
                                               Navicula guatemalensis var. pampeana
                                             Navicula guaynaboensis
                                             Navicula guetharyana
                                             Navicula guihotii
                                             Navicula guinardiana
                                             Navicula guluensis
                                             Navicula gurovii
                                             Navicula gurowii
                                             Navicula guttata
                                               Navicula guttata var. maxima
                                               Navicula guttata var. peragalli
                                             Navicula guttulifera
                                             Navicula gutwinskii
                                             Navicula gyrinida
                                             Navicula gysigensis
                                             Navicula h-album
                                             Navicula habena
                                             Navicula habita
                                             Navicula hagelsteinii
                                             Navicula hahni
                                             Navicula hahnii
                                               Navicula hahnii var. stricta
                                             Navicula halinae
                                             Navicula halionata
                                               Navicula halionata var. directa
                                               Navicula halionata var. magna
                                               Navicula halionata var. minor
                                               Navicula halionata var. robusta
                                             Navicula halophila
                                                   Navicula halophila f. nabogoensis
                                                   Navicula halophila f. subcapitata
                                               Navicula halophila var. areata
                                               Navicula halophila var. arvernense
                                               Navicula halophila var. brevis
                                               Navicula halophila var. convergens
                                               Navicula halophila var. eusebici
                                               Navicula halophila var. fogedii
                                               Navicula halophila var. gallica
                                               Navicula halophila var. genuina
                                               Navicula halophila var. major
                                               Navicula halophila var. obscura
                                               Navicula halophila var. okamurae
                                               Navicula halophila var. rostrata
                                               Navicula halophila var. szelidensis
                                             Navicula halophiloides
                                             Navicula hamiltonii
                                             Navicula hamulifera
                                               Navicula hamulifera var. interrupta
                                               Navicula hamulifera var. plicata
                                             Navicula hangchowensis
                                             Navicula hankae
                                             Navicula hanseatica
                                               Navicula hanseatica subsp. circumarctica
                                             Navicula hanseniana
                                             Navicula hantkenii
                                             Navicula haradaae
                                             Navicula harbinensis
                                             Navicula harderi
                                                   [Navicula subseminulum]
                                             Navicula hariola
                                             Navicula harpa
                                             Navicula harrisoniana
                                             Navicula hartii
                                             Navicula hartzii
                                             Navicula hasta
                                                   [Schizonema hasta]
                                                   Navicula hasta f. minor
                                               Navicula hasta var. fossilis
                                               Navicula hasta var. punctata
                                             Navicula hastaeformis
                                             Navicula hastata
                                             Navicula hastatula
                                             Navicula hauckii
                                             Navicula haueri
                                               Navicula haueri var. angustior
                                             Navicula hawaiensis
                                             Navicula hawaiiensis
                                             Navicula haynaldii
                                             Navicula haytiana
                                             Navicula hazslinszkyi
                                             Navicula hebes
                                                   Navicula hebes f. bivittata
                                             Navicula hecateia
                                             Navicula heeri
                                             Navicula heilprinensis
                                             Navicula heimansioides
                                             Navicula heimii
                                               Navicula heimii var. citriformis
                                             Navicula helea
                                             Navicula helensoides
                                             Navicula helmandensis
                                             Navicula helminae
                                             Navicula helvetica
                                                   Navicula helvetica f. rostrata
                                               Navicula helvetica var. woltericki
                                             Navicula hemiptera
                                               Navicula hemiptera var. angusta
                                               Navicula hemiptera var. commutata
                                               Navicula hemiptera var. gibba
                                             Navicula hemiviridula
                                             Navicula henckeli
                                             Navicula hennedyi
                                                   Navicula hennedyi f. bacillifera
                                                   Navicula hennedyi f. californica
                                                   Navicula hennedyi f. couperii
                                                   Navicula hennedyi f. cuneata
                                                   Navicula hennedyi f. granulata
                                                   Navicula hennedyi f. insulans
                                                   Navicula hennedyi f. longesulcata
                                                   Navicula hennedyi f. maculans
                                                   Navicula hennedyi f. major
                                                   Navicula hennedyi f. minor
                                                   Navicula hennedyi f. obesa
                                                   Navicula hennedyi f. subrostrata
                                                   Navicula hennedyi f. typica
                                                   Navicula hennedyi f. undulata
                                               Navicula hennedyi var. aemilia
                                               Navicula hennedyi var. brachypleura
                                               Navicula hennedyi var. californica
                                               Navicula hennedyi var. caliginosa
                                               Navicula hennedyi var. centraster
                                               Navicula hennedyi var. controversa
                                               Navicula hennedyi var. cuneata
                                               Navicula hennedyi var. dentata
                                               Navicula hennedyi var. difficilis
                                               Navicula hennedyi var. fossilis
                                               Navicula hennedyi var. granulata
                                               Navicula hennedyi var. lumbricina
                                               Navicula hennedyi var. luxuosa
                                               Navicula hennedyi var. manca
                                               Navicula hennedyi var. maxima
                                               Navicula hennedyi var. minuta
                                               Navicula hennedyi var. neapolitana
                                               Navicula hennedyi var. nebulosa
                                               Navicula hennedyi var. nicaeensis
                                               Navicula hennedyi var. schleinitzii
                                               Navicula hennedyi var. sordida
                                               Navicula hennedyi var. subrostrata
                                               Navicula hennedyi var. tahitensis
                                               Navicula hennedyi var. tenuistriata
                                               Navicula hennedyi var. tigrina
                                               Navicula hennedyi var. undulata
                                               Navicula hennedyi var. venustoides
                                               Navicula hennedyi var. vermicularis
                                             Navicula hennedyii
                                               Navicula hennedyii var. manca
                                             Navicula henriquesii
                                             Navicula herbstiae
                                             Navicula heribaudi
                                                   Navicula heribaudi f. curta
                                               Navicula heribaudi var. elongata
                                             Navicula hermanii
                                             Navicula heteroflexa
                                               Navicula heteroflexa var. constricta
                                               Navicula heteroflexa var. minor
                                             Navicula heterostriata
                                             Navicula heufleri
                                                   [Navicula cincta var. heufleri]
                                                   [Pinnularia heufleri]
                                             Navicula heufleriana
                                               Navicula heufleriana var. minor
                                               Navicula heufleriana var. septentrionalis
                                             Navicula hevesensis
                                             Navicula hexapla
                                             Navicula hibernica
                                             Navicula hilarula
                                             Navicula hilliardi
                                             Navicula hilliardii
                                               Navicula hilliardii var. pseudosiliculaoides
                                             Navicula hintzii
                                             Navicula hirudo
                                             Navicula hitchcocki
                                               Navicula hitchcocki var. intermedia
                                             Navicula hochstetteri
                                               Navicula hochstetteri var. patagonica
                                               Navicula hochstetteri var. placita
                                             Navicula hochstetteriana
                                             Navicula hodgeana
                                             Navicula hoefleri
                                             Navicula hoeflerii
                                             Navicula hoffmannii
                                             Navicula hofmanniae
                                             Navicula hollandica
                                             Navicula hollerupensis
                                             Navicula holmiensis
                                             Navicula holstii
                                             Navicula holubyi
                                             Navicula homburgiana
                                             Navicula hordeiformis
                                             Navicula hornigii
                                             Navicula horstii
                                             Navicula hospes
                                             Navicula huei
                                               Navicula huei var. lata
                                             Navicula hugenottarum
                                             Navicula humboldtiana
                                             Navicula humerosa
                                                   Navicula humerosa f. capensis
                                                   Navicula humerosa f. constricta
                                                   Navicula humerosa f. minor
                                               Navicula humerosa var. arabica
                                               Navicula humerosa var. densestriata
                                               Navicula humerosa var. elongata
                                               Navicula humerosa var. fuchsii
                                               Navicula humerosa var. fuscata
                                               Navicula humerosa var. lata
                                               Navicula humerosa var. quadrata
                                             Navicula humjibreensis
                                             Navicula hungarica
                                                   Navicula hungarica f. elegans
                                                   Navicula hungarica f. ovalis
                                               Navicula hungarica var. acuta
                                               Navicula hungarica var. elegans
                                               Navicula hungarica var. genuina
                                               Navicula hungarica var. intermedia
                                               Navicula hungarica var. lanceolata
                                               Navicula hungarica var. luneburgensis
                                               Navicula hungarica var. obtusa
                                               Navicula hungarica var. ovalis
                                             Navicula huniensis
                                             Navicula husi
                                             Navicula hustedtiana
                                             Navicula hustedtii
                                               Navicula hustedtii var. obtusa
                                               Navicula hustedtii var. rhodesica
                                             Navicula hyalina
                                               Navicula hyalina var. fossilis
                                               Navicula hyalina var. minima
                                             Navicula hyalosira
                                             Navicula hybrida
                                             Navicula hyperborea
                                             Navicula hyrtlii
                                                   Navicula hyrtlii f. minor
                                               Navicula hyrtlii var. linearis
                                             Navicula iasnitskii
                                               Navicula iasnitskii var. obtusa
                                             Navicula iberica
                                             Navicula icostauron
                                             Navicula ignobilis
                                             Navicula ignota
                                               Navicula ignota var. anglica
                                               Navicula ignota var. ignota
                                             Navicula ikari
                                               Navicula ikari var. nipponica
                                             Navicula illicita
                                             Navicula illinoensis
                                             Navicula illustra
                                               Navicula illustra var. antiqua
                                               Navicula illustra var. cuneata
                                             Navicula illustris
                                               Navicula illustris var. neapolitana
                                             Navicula ilopangoensis
                                             Navicula imbecilla
                                             Navicula imbellis
                                             Navicula imbricata
                                             Navicula impangenica
                                             Navicula imperfecta
                                               Navicula imperfecta var. antarctica
                                               Navicula imperfecta var. lanceolata
                                             Navicula imperialis
                                             Navicula impertila
                                             Navicula impexa
                                             Navicula implana
                                             Navicula impleta
                                             Navicula importunata
                                             Navicula impossibilis
                                             Navicula impressa
                                             Navicula inattigens
                                             Navicula incarum
                                             Navicula incisa
                                             Navicula inclinata
                                             Navicula includens
                                             Navicula incognita
                                               Navicula incognita var. capitata
                                             Navicula incomitatus
                                             Navicula incomperta
                                               Navicula incomperta var. fossilis
                                             Navicula incomposita
                                               Navicula incomposita var. minor
                                             Navicula incompta
                                             Navicula incongruens
                                             Navicula incudiformis
                                             Navicula inculta
                                             Navicula incurva
                                               Navicula incurva var. minor
                                             Navicula incus
                                               Navicula incus var. abbreviata
                                             Navicula indefinita
                                             Navicula indemnis
                                             Navicula index
                                             Navicula indianensis
                                             Navicula indica
                                             Navicula indigens
                                             Navicula inducens
                                             Navicula indulgens
                                             Navicula inelegans
                                             Navicula inexacta
                                             Navicula inexpectans
                                             Navicula inexplorata
                                             Navicula infaceta
                                             Navicula infirma
                                             Navicula infirmata
                                             Navicula infirmitata
                                             Navicula inflasa
                                             Navicula inflata
                                                   [Schizonema inflatum]
                                               Navicula inflata var. rostrata
                                             Navicula inflatoides
                                             Navicula inflexa
                                                   [Pinnularia inflexa]
                                                   [Schizonema inflexum]
                                               Navicula inflexa var. biharensis
                                             Navicula infrenis
                                             Navicula ingapirca
                                             Navicula ingens
                                             Navicula ingenua
                                             Navicula ingoldii
                                             Navicula ingrata
                                                   Navicula ingrata f. capitata
                                             Navicula ingstadii
                                             Navicula ingustata
                                             Navicula inhalata
                                               Navicula inhalata var. biharensis
                                               Navicula inhalata var. lanceolata
                                             Navicula injusta
                                             Navicula innommata
                                             Navicula inornata
                                             Navicula inpunctata
                                             Navicula inquisitor
                                             Navicula inscendens
                                             Navicula insepta
                                             Navicula insequens
                                             Navicula inserata
                                               Navicula inserata var. elliptica
                                               Navicula inserata var. undulata
                                             Navicula inseriata
                                             Navicula insignificans
                                             Navicula insignis
                                             Navicula insignita
                                                   [Placoneis insignita]
                                                   Navicula insignita f. minor
                                               Navicula insignita var. rostrata
                                             Navicula insociabilis
                                               Navicula insociabilis var. Hustedt
                                               Navicula insociabilis var. lanceolata
                                             Navicula insolita
                                             Navicula insolubilis
                                             Navicula insularis
                                             Navicula insulsa
                                             Navicula insuta
                                             Navicula intacta
                                             Navicula integra
                                               Navicula integra var. conspicua
                                               Navicula integra var. elliptica
                                               Navicula integra var. gibba
                                               Navicula integra var. helvetica
                                               Navicula integra var. truncata
                                             Navicula intercedens
                                             Navicula interglacialis
                                             Navicula interlineata
                                             Navicula intermedia
                                               Navicula intermedia var. antarctica
                                             Navicula intermixta
                                             Navicula interrupta
                                                   Navicula interrupta f. braunii
                                                   Navicula interrupta f. pseudomesolepta
                                               Navicula interrupta var. fossilis
                                               Navicula interrupta var. novae
                                               Navicula interrupta var. stauroneiformis
                                               Navicula interrupta var. tallyana
                                               Navicula interrupta var. zanzibarica
                                             Navicula interruptestriata
                                             Navicula interupta
                                             Navicula intractata
                                             Navicula intricata
                                             Navicula inutilis
                                             Navicula invenusta
                                             Navicula inversa
                                             Navicula invicta
                                             Navicula invisitata
                                             Navicula involata
                                             Navicula involuta
                                             Navicula iota
                                             Navicula iranensis
                                             Navicula irata
                                             Navicula ireneae
                                             Navicula iridis
                                                   Navicula iridis f. angustata
                                                   Navicula iridis f. intermedia
                                                   Navicula iridis f. media
                                                   Navicula iridis f. minor
                                               Navicula iridis var. affinis
                                               Navicula iridis var. amphigomphus
                                               Navicula iridis var. dubia
                                               Navicula iridis var. minor
                                               Navicula iridis var. reducta
                                               Navicula iridis var. subproducta
                                             Navicula irmengardis
                                             Navicula irregularis
                                             Navicula irreversa
                                             Navicula irritans
                                             Navicula irrorata
                                                   Navicula irrorata f. mexicana
                                                   Navicula irrorata f. typica
                                               Navicula irrorata var. ceylanica
                                               Navicula irrorata var. elliptica
                                               Navicula irrorata var. fossilis
                                               Navicula irrorata var. lineata
                                               Navicula irrorata var. maculata
                                               Navicula irrorata var. mexicana
                                               Navicula irrorata var. substauroneifornis
                                             Navicula irroratoides
                                                   Navicula irroratoides f. elliptica
                                             Navicula isabelensiformis
                                             Navicula isabelensiminor
                                             Navicula isabelensis
                                             Navicula isabelensoides
                                             Navicula iserentantii
                                             Navicula isertii
                                             Navicula islandica
                                             Navicula isocephala
                                             Navicula isostauron
                                             Navicula iversenii
                                             Navicula ivigtutensis
                                             Navicula izsopallagae
                                             Navicula jacksoni
                                             Navicula jacobii
                                             Navicula jacotiae
                                             Navicula jaernefeltioides
                                             Navicula jakkalsica
                                             Navicula jakovljevici
                                             Navicula jakovljevicii
                                             Navicula jamaicensis
                                             Navicula jamalinensis
                                               Navicula jamalinensis var. schizostauron
                                               Navicula jamalinensis var. simiaevultus
                                             Navicula jasnitskii
                                                   Navicula jasnitskii f. constricta
                                                   Navicula jasnitskii f. obtusa
                                               Navicula jasnitskii var. constricta
                                             Navicula jasnitskyi
                                             Navicula jatobensis
                                               Navicula jatobensis var. capitata
                                             Navicula javanensis
                                             Navicula javanica
                                             Navicula jeffreyae
                                             Navicula jejuna
                                               Navicula jejuna var. arctica
                                             Navicula jejunoides
                                                   Navicula jejunoides f. longissima
                                             Navicula jenneri
                                             Navicula jentzschii
                                                   Navicula jentzschii f. major
                                                   Navicula jentzschii f. minor
                                                   Navicula jentzschii f. typica
                                               Navicula jentzschii var. elongata
                                             Navicula jequitinhonhae
                                             Navicula jessenii
                                             Navicula jimboi
                                               Navicula jimboi var. cymbelloides
                                               Navicula jimboi var. ussuriensis
                                             Navicula jogensis
                                             Navicula johanrossii
                                             Navicula johnsonii
                                             Navicula jonssoni
                                             Navicula jonssonii
                                             Navicula jordani
                                             Navicula josephi
                                             Navicula joubaudi
                                             Navicula joubaudii
                                             Navicula joursacensis
                                             Navicula jouseana
                                             Navicula juanitalinda
                                             Navicula juba
                                             Navicula jucunda
                                             Navicula jugata
                                             Navicula julieni
                                             Navicula jungi
                                               Navicula jungi var. inflata
                                             Navicula jungii
                                                   Navicula jungii f. inflata
                                             Navicula jurassensis
                                             Navicula jurgensii
                                             Navicula jurilji
                                             Navicula kaapensis
                                             Navicula kaelfvensis
                                             Navicula kaikonkiensis
                                             Navicula kamorthensis
                                             Navicula kanemi
                                             Navicula kanitzii
                                             Navicula kantsiensis
                                             Navicula kantsinensis
                                             Navicula kappa
                                             Navicula karelica
                                               Navicula karelica var. baicalensis
                                             Navicula kariana
                                                   Navicula kariana f. curta
                                                   Navicula kariana f. japonica
                                               Navicula kariana var. curta
                                               Navicula kariana var. detersa
                                               Navicula kariana var. frigida
                                               Navicula kariana var. kariana
                                               Navicula kariana var. minor
                                               Navicula kariana var. perpusilla
                                               Navicula kariana var. perspusilla
                                             Navicula karsia
                                             Navicula karstenii
                                             Navicula kawamurae
                                             Navicula kefvingensis
                                                   [Navicula peregrina var. kefvingensis]
                                                   [Pinnularia kefvingensis]
                                             Navicula kelleri
                                             Navicula kenon
                                             Navicula kenyae
                                             Navicula kepesii
                                             Navicula kerguelensis
                                                   Navicula kerguelensis f. major
                                             Navicula kernensis
                                             Navicula kertschiana
                                             Navicula kincaidii
                                             Navicula kinkeriana
                                             Navicula kinkerii
                                             Navicula kirchneriana
                                             Navicula kisber
                                             Navicula kittoniana
                                             Navicula kizakensis
                                             Navicula kjellmanii
                                                   Navicula kjellmanii f. subconstricta
                                               Navicula kjellmanii var. subconstricta
                                             Navicula klavsenii
                                               Navicula klavsenii var. turgida
                                             Navicula kleerekoperi
                                             Navicula knysnensis
                                             Navicula knysnesis
                                             Navicula kochii
                                             Navicula koeiei
                                             Navicula kohlenbachii
                                             Navicula kohlmaieri
                                             Navicula kolbei
                                             Navicula kolentiensis
                                             Navicula kolugoensis
                                             Navicula koniamboensis
                                             Navicula konstantini
                                             Navicula korzeniewskii
                                             Navicula kossuthii
                                             Navicula kotschii
                                               Navicula kotschii var. robusta
                                             Navicula kotschyana
                                             Navicula kotschyi
                                                   Navicula kotschyi f. hinganica
                                                   Navicula kotschyi f. kotschyi
                                                   Navicula kotschyi f. undulata
                                                         [Navicula kotschyi var. undulata]
                                               Navicula kotschyi var. hueckii
                                               Navicula kotschyi var. robusta
                                               Navicula kotschyi var. rupestris
                                             Navicula kovalchookiana
                                             Navicula kpongensis
                                             Navicula krammerae
                                             Navicula krasskei
                                               Navicula krasskei var. endolithica
                                             Navicula kryokonites
                                               Navicula kryokonites var. islandica
                                               Navicula kryokonites var. semiperfecta
                                               Navicula kryokonites var. semistriata
                                               Navicula kryokonites var. subprotracta
                                               Navicula kryokonites var. wankaremae
                                             Navicula kryophila
                                               Navicula kryophila var. gelida
                                             Navicula kuetzingiana
                                             Navicula kuetzingii
                                             Navicula kuolensis
                                             Navicula kuripanensis
                                               Navicula kuripanensis var. borealis
                                             Navicula kurzii
                                             Navicula kuseliana
                                             Navicula kutzingiana
                                             Navicula kuusamensis
                                             Navicula kuwaitiana
                                             Navicula kwamkuji
                                             Navicula laciniosa
                                             Navicula lacrimans
                                               Navicula lacrimans var. fossilis
                                             Navicula lacrymans
                                               Navicula lacrymans var. obtusata
                                             Navicula lacuna
                                             Navicula lacunarum
                                                   [Caloneis bacillaris var. lacunarum]
                                                   [Caloneis fasciata var. lacunarum]
                                               Navicula lacunarum var. undulata
                                             Navicula lacunicola
                                             Navicula lacus
                                             Navicula lacus-baicali
                                               Navicula lacus-baicali var. curta
                                               Navicula lacus-baicali var. lanceolata
                                               Navicula lacus-baicali var. simplex
                                             Navicula lacus-karluki
                                             Navicula lacus-lemani
                                             Navicula lacustris
                                                   Navicula lacustris f. genuina
                                                   Navicula lacustris f. gibbosa
                                                   Navicula lacustris f. oblique-cruciata
                                               Navicula lacustris var. elliptica
                                               Navicula lacustris var. elongata
                                               Navicula lacustris var. major
                                               Navicula lacustris var. parallela
                                             Navicula ladogensis
                                             Navicula laevimarginata
                                             Navicula laevis
                                             Navicula laevissima
                                                   Navicula laevissima f. elongata
                                               Navicula laevissima var. rectangularis
                                             Navicula lagerheimii
                                                   Navicula lagerheimii f. rotundata
                                               Navicula lagerheimii var. capitata
                                               Navicula lagerheimii var. intermedia
                                               Navicula lagerheimii var. lanceolata
                                               Navicula lagerheimii var. nomismatiformis
                                               Navicula lagerheimii var. ovalis
                                               Navicula lagerheimii var. ovata
                                               Navicula lagerheimii var. robusta
                                             Navicula lagerstedti
                                               Navicula lagerstedti var. palustris
                                             Navicula lagunae
                                             Navicula laingii
                                             Navicula lalia
                                             Navicula lambda
                                               Navicula lambda var. densistriata
                                               Navicula lambda var. recta
                                               Navicula lambda var. sinica
                                             Navicula lambertensis
                                             Navicula lamella
                                             Navicula lamii
                                             Navicula lampra
                                             Navicula lamprocampa
                                             Navicula lanceolata
                                                   [Schizonema thwaitesii]
                                                   Navicula lanceolata f. minuta
                                               Navicula lanceolata var. curta
                                               Navicula lanceolata var. genuina
                                               Navicula lanceolata var. hordeiformis
                                               Navicula lanceolata var. koreana
                                               Navicula lanceolata var. latior
                                               Navicula lanceolata var. phyllepta
                                               Navicula lanceolata var. producta
                                               Navicula lanceolata var. rostrata
                                               Navicula lanceolata var. spicula
                                               Navicula lanceolata var. sublinearis
                                               Navicula lanceolata var. tenella
                                               Navicula lanceolata var. tenuirostris
                                             Navicula langoraensis
                                             Navicula lapidosa
                                               Navicula lapidosa var. nipponica
                                             Navicula lapila
                                             Navicula lapsa
                                             Navicula lata
                                                   Navicula lata f. major
                                               Navicula lata var. angustior
                                               Navicula lata var. curta
                                               Navicula lata var. integra
                                               Navicula lata var. latestriata
                                               Navicula lata var. minor
                                               Navicula lata var. rabenhorstii
                                             Navicula latefasciata
                                               Navicula latefasciata var. angusta
                                             Navicula latelongitudinalis
                                             Navicula lateropunctata
                                             Navicula laterostrata
                                                   [Navicula inflata var. laterostrata]
                                               Navicula laterostrata var. primigenia
                                               Navicula laterostrata var. rostrata
                                             Navicula latevittata
                                               Navicula latevittata var. spathulata
                                             Navicula laticeps
                                             Navicula latissima
                                                   Navicula latissima f. constricta
                                                   Navicula latissima f. elliptica
                                                   Navicula latissima f. latissima
                                               Navicula latissima var. capitata
                                               Navicula latissima var. constricta
                                               Navicula latissima var. cuneata
                                               Navicula latissima var. elliptica
                                               Navicula latissima var. elongata
                                               Navicula latissima var. fuchsii
                                               Navicula latissima var. grandis
                                               Navicula latissima var. kamorthensis
                                               Navicula latissima var. minor
                                               Navicula latissima var. quadrata
                                               Navicula latissima var. rostrata
                                             Navicula lauca
                                             Navicula lauta
                                             Navicula lawsonii
                                             Navicula le-tourneurii
                                             Navicula leboimei
                                             Navicula leemanniae
                                             Navicula lefevrei
                                             Navicula legumen
                                                   Navicula legumen f. maior
                                                   Navicula legumen f. major
                                                   Navicula legumen f. minor
                                                   Navicula legumen f. parva
                                               Navicula legumen var. staurophora
                                             Navicula lehmanniae
                                             Navicula leistikowii
                                             Navicula lemmermanni
                                             Navicula lemmermannii
                                             Navicula lenis
                                             Navicula lenoblei
                                             Navicula lenticula
                                             Navicula lenzi
                                             Navicula leonardi
                                             Navicula leonardii
                                             Navicula leonis
                                             Navicula lepida
                                             Navicula lepta
                                             Navicula leptoceros
                                             Navicula leptoloba
                                             Navicula leptorhynchus
                                             Navicula leptostigma
                                                   [Pinnularia leptostigma]
                                             Navicula leptostriata
                                                   [Navicula heimansii]
                                             Navicula leptostylus
                                             Navicula leptotermia
                                             Navicula lesinensis
                                             Navicula lesothensis
                                             Navicula letulenta
                                             Navicula leudugeri
                                             Navicula levanderi
                                                   Navicula levanderi f. capitata
                                               Navicula levanderi var. capitata
                                               Navicula levanderi var. tatrensis
                                             Navicula leveillei
                                             Navicula levensis
                                             Navicula levis
                                             Navicula liaotungiensis
                                             Navicula libellus
                                             Navicula liber
                                                   Navicula liber f. major
                                                   Navicula liber f. orientalis
                                                   Navicula liber f. sinica
                                               Navicula liber var. bicuneata
                                               Navicula liber var. elongata
                                               Navicula liber var. linearis
                                               Navicula liber var. tenuistriata
                                               Navicula liber var. umbilicata
                                             Navicula libonensis
                                                   [Navicula schubartii var. africana]
                                                   [Navicula viridula var. pamirensis]
                                             Navicula liburnica
                                               Navicula liburnica var. intermedia
                                             Navicula lignieri
                                             Navicula limanense
                                             Navicula limata
                                             Navicula limatoides
                                             Navicula limbata
                                             Navicula limicola
                                             Navicula limitanea
                                             Navicula limosa
                                                   Navicula limosa f. major
                                               Navicula limosa var. bicuneata
                                               Navicula limosa var. curta
                                               Navicula limosa var. directa
                                               Navicula limosa var. genuina
                                               Navicula limosa var. inflata
                                               Navicula limosa var. linearis
                                               Navicula limosa var. maculata
                                               Navicula limosa var. silicula
                                               Navicula limosa var. subinflata
                                               Navicula limosa var. truncata
                                               Navicula limosa var. undulata
                                             Navicula limpida
                                             Navicula lindae
                                             Navicula lineola
                                               Navicula lineola var. perlepida
                                             Navicula lineostriata
                                             Navicula linter
                                             Navicula liostauron
                                             Navicula liouvillei
                                             Navicula lirata
                                             Navicula lithognatha
                                             Navicula lithognathoides
                                             Navicula litoris
                                             Navicula litos
                                             Navicula littoralis
                                               Navicula littoralis var. subtilis
                                             Navicula ljugneri
                                             Navicula ljungneri
                                               Navicula ljungneri var. angustior
                                               Navicula ljungneri var. genuina
                                             Navicula lobata
                                             Navicula loczyi
                                             Navicula lohmannii
                                             Navicula loibl-sittlerii
                                             Navicula lomastriata
                                             Navicula londonensis
                                             Navicula longa
                                                   [Pinnularia longa]
                                               Navicula longa var. curta
                                               Navicula longa var. irregularis
                                             Navicula longi
                                             Navicula longicephala
                                             Navicula longifissa
                                             Navicula longirostris
                                               Navicula longirostris var. sibirica
                                             Navicula longistriata
                                             Navicula lorcana
                                             Navicula lorenzii
                                             Navicula lovenii
                                             Navicula loveridgei
                                             Navicula lubetii
                                             Navicula lucenoides
                                             Navicula lucentiformis
                                             Navicula luciae
                                             Navicula luciana
                                             Navicula lucida
                                             Navicula lucidula
                                                   [Schizonema lucidulum]
                                                   Navicula lucidula f. diminuta
                                             Navicula lucifica
                                             Navicula ludloviana
                                                   [Schizonema ludlovianum]
                                               Navicula ludloviana var. unilateralis
                                             Navicula luisii
                                             Navicula lumbricastriata
                                             Navicula lumen
                                             Navicula lunata
                                             Navicula lunatapicalis
                                             Navicula lundii
                                                   [Navicula cryptocephala f. terrestris]
                                             Navicula lundstroemii
                                                   Navicula lundstroemii f. frieseana
                                                   Navicula lundstroemii f. minor
                                               Navicula lundstroemii var. africana
                                               Navicula lundstroemii var. subcapitata
                                             Navicula lunula
                                             Navicula lunulifera
                                             Navicula lunyacsekii
                                             Navicula lupula
                                             Navicula lurinda
                                             Navicula lusitanica
                                             Navicula lusoria
                                             Navicula luxoriensis
                                             Navicula luxuriosa
                                               Navicula luxuriosa var. cuneata
                                             Navicula luzonensis
                                             Navicula lybica
                                             Navicula lyra
                                                   Navicula lyra f. abnormis
                                                   Navicula lyra f. americana
                                                   Navicula lyra f. bullata
                                                   Navicula lyra f. denudata
                                                   Navicula lyra f. fornicata
                                                   Navicula lyra f. minor
                                                   Navicula lyra f. parallela
                                                   Navicula lyra f. perpusilla
                                                   Navicula lyra f. recta
                                                   Navicula lyra f. robertsiana
                                               Navicula lyra var. Grunow
                                               Navicula lyra var. abnormis
                                               Navicula lyra var. acuta
                                               Navicula lyra var. americana
                                               Navicula lyra var. approximata
                                               Navicula lyra var. arctica
                                               Navicula lyra var. asymmetrica
                                               Navicula lyra var. atlantica
                                               Navicula lyra var. australica
                                               Navicula lyra var. connectens
                                               Navicula lyra var. constricta
                                               Navicula lyra var. costata
                                               Navicula lyra var. denudata
                                               Navicula lyra var. dilatata
                                               Navicula lyra var. dubia
                                               Navicula lyra var. ehrenbergii
                                               Navicula lyra var. elliptica
                                               Navicula lyra var. fornicata
                                               Navicula lyra var. granulata
                                               Navicula lyra var. grunovii
                                               Navicula lyra var. hungarica
                                               Navicula lyra var. indefinita
                                               Navicula lyra var. insignis
                                               Navicula lyra var. intermedia
                                               Navicula lyra var. irregularis
                                               Navicula lyra var. islandica
                                               Navicula lyra var. magrinii
                                               Navicula lyra var. minor
                                               Navicula lyra var. obscura
                                               Navicula lyra var. producta
                                               Navicula lyra var. recta
                                               Navicula lyra var. reichelti
                                               Navicula lyra var. robertsiana
                                               Navicula lyra var. robertsoniana
                                               Navicula lyra var. schulzii
                                               Navicula lyra var. seductilis
                                               Navicula lyra var. signata
                                               Navicula lyra var. spectabilis
                                               Navicula lyra var. subelliptica
                                               Navicula lyra var. zanzibarica
                                             Navicula lyrans
                                             Navicula lyrella
                                             Navicula lyrigera
                                             Navicula lyroides
                                                   Navicula lyroides f. constricta
                                               Navicula lyroides var. sparsipunctata
                                             Navicula m?g?csyi
                                               Navicula m?g?csyi var. stauroneiformis
                                             Navicula m?rtonfii
                                             Navicula macdonaghi
                                             Navicula macer
                                             Navicula maceria
                                             Navicula macilenta
                                             Navicula macraeana
                                             Navicula macrogongyla
                                             Navicula macromphala
                                             Navicula macropunctata
                                             Navicula macula
                                             Navicula maculata
                                                   Navicula maculata f. californica
                                                   Navicula maculata f. confoederata
                                                         [Navicula confoederata]
                                                   Navicula maculata f. undulata
                                               Navicula maculata var. acuta
                                               Navicula maculata var. caribaea
                                               Navicula maculata var. gigantea
                                               Navicula maculata var. inflata
                                               Navicula maculata var. lanceolata
                                               Navicula maculata var. major
                                               Navicula maculata var. orbiculata
                                             Navicula maculosa
                                                   Navicula maculosa f. tropica
                                             Navicula madagascarensis
                                             Navicula madagascariensis
                                             Navicula madeirensis
                                             Navicula madrae
                                             Navicula maeandriana
                                             Navicula maeandrinoides
                                             Navicula maendrina
                                             Navicula maeotica
                                             Navicula magapolitana
                                             Navicula magellanica
                                               Navicula magellanica var. candelariae
                                               Navicula magellanica var. minor
                                             Navicula magna
                                               Navicula magna var. curta
                                               Navicula magna var. lanceolata
                                             Navicula magnifica
                                             Navicula maharashtrensis
                                             Navicula mahoodii
                                             Navicula maidanae
                                             Navicula major
                                                   Navicula major f. abnormis
                                                   Navicula major f. maxima
                                                   Navicula major f. minor
                                               Navicula major var. angulata
                                               Navicula major var. berriati
                                               Navicula major var. convergentissima
                                               Navicula major var. crassa
                                               Navicula major var. dilatata
                                               Navicula major var. horrida
                                               Navicula major var. interrupta
                                               Navicula major var. latefasciata
                                               Navicula major var. pagesii
                                               Navicula major var. perlonga
                                               Navicula major var. subacuta
                                             Navicula majusculoides
                                             Navicula malacarae
                                             Navicula maliana
                                             Navicula malica
                                             Navicula malinvaudi
                                             Navicula malombensis
                                             Navicula malutiana
                                             Navicula mammalis
                                             Navicula manapiensis
                                             Navicula manginii
                                             Navicula manifesta
                                             Navicula mannii
                                             Navicula manokwariensis
                                             Navicula mansiensis
                                             Navicula mantichora
                                             Navicula manubialis
                                             Navicula mardansouensis
                                             Navicula margalithii
                                             Navicula margarita
                                             Navicula margaritacea
                                             Navicula margaritata
                                             Navicula margaritiana
                                             Navicula margaritifera
                                             Navicula marginata
                                               Navicula marginata var. mastogloidea
                                             Navicula marginestriata
                                               Navicula marginestriata var. arctica
                                             Navicula margino-nodularis
                                             Navicula margino-ornata
                                             Navicula marginulata
                                             Navicula maria
                                             Navicula mariagracielae
                                             Navicula mariposae
                                             Navicula marlieri
                                             Navicula marlierii
                                             Navicula marmorata
                                             Navicula marnieri
                                             Navicula marnierii
                                             Navicula martini
                                             Navicula martinii
                                             Navicula martyi
                                             Navicula mascarenae
                                             Navicula mastogloidea
                                             Navicula mauleri
                                             Navicula mauriciana
                                             Navicula maxima
                                               Navicula maxima var. asiatica
                                               Navicula maxima var. bicuneata
                                               Navicula maxima var. excentrica
                                               Navicula maxima var. holubyi
                                               Navicula maxima var. lata
                                               Navicula maxima var. linearis
                                               Navicula maxima var. umbilicata
                                             Navicula mayeri
                                             Navicula meadeensis
                                             Navicula meadensis
                                             Navicula mediacomplexa
                                             Navicula mediahelos
                                             Navicula medica
                                             Navicula medioconvexa
                                                   Navicula medioconvexa f. simplex
                                             Navicula mediocostata
                                             Navicula mediocriformis
                                             Navicula mediocris
                                               Navicula mediocris var. atomus
                                               Navicula mediocris var. barodensis
                                               Navicula mediocris var. intermedia
                                             Navicula medioincrassata
                                             Navicula medioinflata
                                             Navicula mediopartita
                                             Navicula mediopunctata
                                             Navicula mediterranea
                                             Navicula megacuspidata
                                             Navicula megalodon
                                             Navicula megaloptera
                                               Navicula megaloptera var. densecostata
                                             Navicula megapolitana
                                             Navicula megastauros
                                             Navicula meisteri
                                             Navicula meisterii
                                             Navicula melanesica
                                             Navicula melchersi
                                             Navicula meleagris
                                             Navicula menaiana
                                             Navicula menda
                                             Navicula mendica
                                             Navicula mengeae
                                             Navicula menilitica
                                             Navicula meniscoides
                                             Navicula menisculoides
                                             Navicula menisculus
                                                   [Navicula meniscus var. menisculus]
                                                   [Navicula peregrina var. menisculus]
                                                   Navicula menisculus f. minor
                                                   Navicula menisculus f. minutissima
                                               Navicula menisculus var. grunowii
                                               Navicula menisculus var. inconspicua
                                               Navicula menisculus var. krenneri
                                               Navicula menisculus var. menisculus
                                               Navicula menisculus var. meniscus
                                               Navicula menisculus var. obtusa
                                               Navicula menisculus var. sinica
                                               Navicula menisculus var. tenuis
                                               Navicula menisculus var. upsaliensis
                                                     [Navicula peregrina f. upsaliensis]
                                                     [Navicula upsaliensis]
                                             Navicula meniscus
                                                   Navicula meniscus f. parva
                                             Navicula mentzii
                                             Navicula mereschkowskyi
                                               Navicula mereschkowskyi var. recta
                                             Navicula meridiepacifica
                                             Navicula meridionalis
                                             Navicula meridiorecens
                                             Navicula mersa
                                             Navicula mesogongyla
                                             Navicula mesolaia
                                             Navicula mesoleiae
                                             Navicula mesolepta
                                               Navicula mesolepta var. africana
                                               Navicula mesolepta var. alberti
                                               Navicula mesolepta var. boryana
                                               Navicula mesolepta var. constricta
                                               Navicula mesolepta var. genuina
                                               Navicula mesolepta var. interrupta
                                               Navicula mesolepta var. nodulosa
                                               Navicula mesolepta var. polyonca
                                               Navicula mesolepta var. producta
                                               Navicula mesolepta var. protensa
                                               Navicula mesolepta var. saintignyi
                                               Navicula mesolepta var. termes
                                             Navicula mesopachya
                                             Navicula mesotyla
                                             Navicula mexicana
                                             Navicula meyeri
                                               Navicula meyeri var. rostrata
                                             Navicula mica
                                             Navicula microcari
                                             Navicula microcephala
                                               Navicula microcephala var. rostrata
                                             Navicula microdicta
                                             Navicula microdigitoradiata
                                                   [Navicula cincta f. minuta]
                                             Navicula microlyra
                                             Navicula micropupula
                                             Navicula microrhombus
                                             Navicula microrhynchus
                                             Navicula microstauron
                                                   Navicula microstauron f. stauroneiformis
                                               Navicula microstauron var. stauroneiformis
                                             Navicula microstoma
                                             Navicula migma
                                             Navicula mikado
                                             Navicula mikrotatos
                                             Navicula millotiana
                                             Navicula millsi
                                             Navicula milthersii
                                             Navicula mimicans
                                             Navicula mimula
                                             Navicula mina
                                             Navicula minima
                                                   [Navicula minima var. atomoides]
                                                   [Navicula minuta var. atomoides]
                                                   [Schizonema minimum]
                                               Navicula minima var. minima
                                               Navicula minima var. okamurae
                                               Navicula minima var. pseudofossilis
                                               Navicula minima var. typica
                                               Navicula minima var. zni?iensis
                                             Navicula minimia
                                               Navicula minimia var. atomoides
                                             Navicula minimoides
                                             Navicula minina
                                               Navicula minina var. okamurae
                                             Navicula miniscula
                                               Navicula miniscula var. alpestris
                                               Navicula miniscula var. muralis
                                             Navicula minisculoides
                                             Navicula minnewaukonensis
                                             Navicula minor
                                             Navicula minthe
                                             Navicula mintracta
                                             Navicula minuscula
                                                   Navicula minuscula f. linearis
                                               Navicula minuscula var. alpestris
                                               Navicula minuscula var. minuscula
                                             Navicula minuta
                                             Navicula minutissima
                                             Navicula minutula
                                             Navicula mira
                                             Navicula mirabilis
                                                   Navicula mirabilis f. intermedia
                                             Navicula mirabunda
                                             Navicula miramaris
                                             Navicula mirifica
                                                   Navicula mirifica f. lanceolata
                                               Navicula mirifica var. lanceolata
                                             Navicula misella
                                             Navicula misionera
                                             Navicula mobiliensis
                                               Navicula mobiliensis var. capitata
                                             Navicula mocsarensis
                                             Navicula modesta
                                             Navicula moendrina
                                             Navicula moenofranconica
                                             Navicula moerckii
                                             Navicula moesta
                                             Navicula moesziana
                                             Navicula molesta
                                               Navicula molesta var. subdiversa
                                             Navicula molestiformis
                                             Navicula mollicula
                                             Navicula mollis
                                             Navicula mollissima
                                             Navicula monela
                                             Navicula monile
                                             Navicula monilifera
                                               Navicula monilifera var. constricta
                                               Navicula monilifera var. elliptica
                                               Navicula monilifera var. heterosticta
                                               Navicula monilifera var. obtusa
                                             Navicula moniliformis
                                             Navicula monmouthiana
                                             Navicula monmouthianastodderi
                                             Navicula monodi
                                             Navicula monodon
                                             Navicula monradii
                                             Navicula montana
                                             Navicula montanestris
                                             Navicula montisatrae
                                             Navicula mooreana
                                             Navicula moorosiana
                                             Navicula moreii
                                             Navicula mormonorum
                                             Navicula morricei
                                             Navicula moscarensis
                                             Navicula moskalii
                                             Navicula mossbergensis
                                             Navicula mournei
                                             Navicula mucicola
                                             Navicula mucicoloides
                                             Navicula muciculoides
                                             Navicula mucronula
                                             Navicula muelleri
                                             Navicula mugadensis
                                             Navicula mujibensis
                                             Navicula multicostata
                                               Navicula multicostata var. intermedia
                                             Navicula multigramme
                                             Navicula multiperla
                                             Navicula multiplex
                                             Navicula multiseriata
                                             Navicula multistriata
                                             Navicula muncki
                                             Navicula munckii
                                             Navicula munda
                                             Navicula muralibionta
                                             Navicula muraliformis
                                             Navicula muralis
                                                   Navicula muralis f. minuta
                                                   Navicula muralis f. sublanceolata
                                             Navicula murrayi
                                               Navicula murrayi var. elegans
                                             Navicula musca
                                                   Navicula musca f. minor
                                               Navicula musca var. intermedia
                                               Navicula musca var. parva
                                             Navicula muscaeformis
                                             Navicula muscatinei
                                             Navicula muscerda
                                             Navicula muscosa
                                             Navicula mutabilis
                                             Navicula mutata
                                               Navicula mutata var. tanneri
                                             Navicula mutica
                                                   Navicula mutica f. apiculata
                                                   Navicula mutica f. densestriata
                                                   Navicula mutica f. gibbula
                                                   Navicula mutica f. lanceolata
                                                   Navicula mutica f. ornata
                                                   Navicula mutica f. producta
                                                   Navicula mutica f. rostrata
                                                   Navicula mutica f. typica
                                                   Navicula mutica f. undulata
                                               Navicula mutica var. acuminata
                                               Navicula mutica var. binodis
                                               Navicula mutica var. capitata
                                               Navicula mutica var. capitulata
                                               Navicula mutica var. constricta
                                               Navicula mutica var. distinguenda
                                               Navicula mutica var. elliptica
                                               Navicula mutica var. entoleia
                                               Navicula mutica var. gibbula
                                               Navicula mutica var. gomphonemoides
                                               Navicula mutica var. gracilis
                                               Navicula mutica var. guadalupensis
                                               Navicula mutica var. hyalina
                                               Navicula mutica var. lanceolata
                                               Navicula mutica var. legumen
                                               Navicula mutica var. linearis
                                               Navicula mutica var. lucida
                                               Navicula mutica var. minima
                                               Navicula mutica var. oestrupi
                                               Navicula mutica var. ovalis
                                               Navicula mutica var. peruviana
                                               Navicula mutica var. producta
                                               Navicula mutica var. pulchra
                                               Navicula mutica var. rhombica
                                               Navicula mutica var. rhomboidea
                                               Navicula mutica var. sinica
                                               Navicula mutica var. subcircularis
                                               Navicula mutica var. subhexagona
                                               Navicula mutica var. undulata
                                               Navicula mutica var. wulffii
                                             Navicula muticopsiforme
                                             Navicula muticopsis
                                                   Navicula muticopsis f. murrayi
                                                   Navicula muticopsis f. semicruciata
                                               Navicula muticopsis var. lanceolata
                                               Navicula muticopsis var. linearis
                                               Navicula muticopsis var. yberai
                                             Navicula my
                                             Navicula nabrona
                                                   Navicula nabrona f. ovalis
                                             Navicula nagbogensis
                                             Navicula nakai
                                             Navicula namibica
                                             Navicula nana
                                                   Navicula nana f. brevis
                                             Navicula nanella
                                             Navicula nansenii
                                             Navicula narinosa
                                             Navicula nasuta
                                             Navicula natalensis
                                             Navicula natchikae
                                             Navicula nautica
                                             Navicula navigana
                                             Navicula navrongensis
                                             Navicula neapolitana
                                             Navicula nebulosa
                                                   Navicula nebulosa f. undulata
                                               Navicula nebulosa var. suborbicularis
                                             Navicula neglecta
                                               Navicula neglecta var. acuminata
                                             Navicula neidioides
                                             Navicula nemoris
                                             Navicula neocaledonica
                                             Navicula neocomplanata
                                             Navicula neogena
                                             Navicula neogradensis
                                             Navicula neomundana
                                                   [Navicula viridulacalcis subsp. neomundana]
                                             Navicula neoplicata
                                             Navicula neoreversa
                                             Navicula neoventricosa
                                                   Navicula neoventricosa f. binodis
                                             Navicula nepouiana
                                             Navicula nervosa
                                             Navicula netroformis
                                             Navicula neumayeriana
                                             Navicula neumayerii
                                             Navicula neumeyeri
                                             Navicula neupauerii
                                             Navicula nezsideriana
                                             Navicula niceaencis
                                             Navicula niceaensis
                                             Navicula nicobarica
                                             Navicula nicolai
                                             Navicula nidulans
                                             Navicula nienta
                                             Navicula nigri
                                             Navicula nigricans
                                             Navicula nimbus
                                             Navicula niobrara
                                             Navicula nipkowii
                                             Navicula nippon
                                               Navicula nippon var. curta
                                             Navicula nipponica
                                             Navicula nitescens
                                               Navicula nitescens var. fossilis
                                               Navicula nitescens var. fuegiana
                                             Navicula nitida
                                             Navicula nitrifuga
                                             Navicula nitzschii
                                             Navicula nivalis
                                                   Navicula nivalis f. distinguenda
                                             Navicula nivellis
                                             Navicula nivorum
                                               Navicula nivorum var. elongata
                                             Navicula nobilis
                                               Navicula nobilis var. cuneata
                                               Navicula nobilis var. fossilis
                                               Navicula nobilis var. gracilis
                                               Navicula nobilis var. interrupta
                                               Navicula nobilis var. neogena
                                             Navicula nodosa
                                                   Navicula nodosa f. curta
                                               Navicula nodosa var. arverna
                                               Navicula nodosa var. biglobosa
                                               Navicula nodosa var. formica
                                               Navicula nodosa var. stauroneiformis
                                               Navicula nodosa var. staurophora
                                             Navicula nodulosa
                                               Navicula nodulosa var. stauroptera
                                             Navicula nolens
                                             Navicula nonana
                                             Navicula nootkana
                                             Navicula norae
                                             Navicula nordenskioeldii
                                             Navicula normalis
                                             Navicula normaloides
                                             Navicula northumbrica
                                             Navicula northumbricaeformis
                                             Navicula norvegica
                                             Navicula norwegica
                                             Navicula notabilis
                                               Navicula notabilis var. expleta
                                             Navicula notanda
                                             Navicula notata
                                               Navicula notata var. imperfecta
                                               Navicula notata var. minor
                                             Navicula notha
                                             Navicula novadecipiens
                                             Navicula novae-guineaensis
                                             Navicula novaeguineaensis
                                             Navicula novaesiberica
                                             Navicula novasiberica
                                             Navicula nsutaensis
                                             Navicula nubicola
                                             Navicula nubila
                                             Navicula nuda
                                               Navicula nuda var. capitata
                                             Navicula nugalis
                                             Navicula nugax
                                             Navicula numerosa
                                             Navicula nummularioides
                                             Navicula nungaensis
                                             Navicula nunguaensis
                                             Navicula nunivakiana
                                             Navicula nutata
                                             Navicula nuwukiana
                                             Navicula nyassensis
                                               Navicula nyassensis var. capitata
                                               Navicula nyassensis var. elliptica
                                               Navicula nyassensis var. longirostris
                                               Navicula nyassensis var. minor
                                             Navicula nympharum
                                             Navicula oahuensis
                                                   [Cymbella oahuensis]
                                                   [Gomphosphenia oahuensis]
                                             Navicula oamaruensis
                                             Navicula oberohensis
                                             Navicula obesa
                                             Navicula obiecta
                                             Navicula objecta
                                             Navicula obliqua
                                             Navicula oblique-striata
                                             Navicula oblonga
                                                   [Frustulia oblonga]
                                                   [Schizonema oblongum]
                                                   Navicula oblonga f. curta
                                               Navicula oblonga var. acuminata
                                               Navicula oblonga var. alternans
                                               Navicula oblonga var. crenulata
                                               Navicula oblonga var. cuneata
                                               Navicula oblonga var. curta
                                               Navicula oblonga var. directa
                                               Navicula oblonga var. fossilis
                                               Navicula oblonga var. gasilidei
                                               Navicula oblonga var. genuina
                                               Navicula oblonga var. inflata
                                               Navicula oblonga var. lanceolata
                                               Navicula oblonga var. linearis
                                               Navicula oblonga var. macilenta
                                               Navicula oblonga var. magna
                                               Navicula oblonga var. nodulosa
                                               Navicula oblonga var. oblonga
                                               Navicula oblonga var. subcapitata
                                             Navicula oblongata
                                             Navicula oblongella
                                               Navicula oblongella var. directa
                                             Navicula oblongolinearis
                                             Navicula oblongum
                                               Navicula oblongum var. subcapitata
                                             Navicula observanda
                                             Navicula obstinata
                                             Navicula obtecta
                                             Navicula obtusangula
                                             Navicula obtusata
                                               Navicula obtusata var. alandica
                                             Navicula obtuseprotracta
                                             Navicula ocalli
                                             Navicula occasa
                                             Navicula occidentalis
                                             Navicula oceanica
                                             Navicula ocellata
                                               Navicula ocellata var. polymorpha
                                             Navicula ochridana
                                             Navicula octavosignata
                                             Navicula oculata
                                                   Navicula oculata f. major
                                               Navicula oculata var. atomus
                                             Navicula odiosa
                                             Navicula oerensis
                                             Navicula oestrupi
                                                   Navicula oestrupi f. elliptica
                                                   Navicula oestrupi f. inflata
                                                   Navicula oestrupi f. stauroneiformis
                                                   Navicula oestrupi f. subconstricta
                                                   Navicula oestrupi f. truncata
                                             Navicula oestrupii
                                             Navicula oestrupioides
                                             Navicula oetzvallensis
                                             Navicula ohiensis
                                             Navicula okawangoi
                                             Navicula okunoi
                                             Navicula olgae
                                             Navicula oliffi
                                             Navicula oliffii
                                             Navicula oligotraphenta
                                                   [Navicula trivialis var. oligotraphenta]
                                             Navicula olivacea
                                             Navicula olivieri
                                             Navicula omaruensis
                                             Navicula omearii
                                                   Navicula omearii f. typica
                                               Navicula omearii var. labuensis
                                               Navicula omearii var. minor
                                             Navicula omega
                                             Navicula omegopsis
                                             Navicula omicron
                                             Navicula omitta
                                             Navicula omphalia
                                             Navicula onoensis
                                             Navicula opaia
                                             Navicula ophiocephala
                                             Navicula opiei
                                             Navicula opima
                                             Navicula opimoides
                                             Navicula opportuna
                                             Navicula oppressa
                                             Navicula oppugnata
                                               Navicula oppugnata var. exilis
                                             Navicula optima
                                             Navicula orangiana
                                             Navicula orbiculata
                                             Navicula orbis
                                             Navicula orbita
                                             Navicula orcula
                                             Navicula ordinata
                                             Navicula oregonensis
                                             Navicula oregonica
                                             Navicula orellana
                                             Navicula oribica
                                             Navicula orientate
                                             Navicula ornata
                                               Navicula ornata var. spirifsra
                                             Navicula orthoneoides
                                             Navicula ortolanae
                                             Navicula orvinii
                                             Navicula oscitans
                                               Navicula oscitans var. curvipunctata
                                               Navicula oscitans var. subundulata
                                             Navicula osculata
                                             Navicula ostenfeldi
                                             Navicula ostenfeldii
                                                   Navicula ostenfeldii f. brevissima
                                             Navicula osterosa
                                             Navicula ostii
                                             Navicula ostrearia
                                               Navicula ostrearia var. fusiformis
                                             Navicula ostrobottnica
                                             Navicula ostrogothica
                                             Navicula oswaldii
                                               Navicula oswaldii var. hungarica
                                               Navicula oswaldii var. visenda
                                             Navicula otrantina
                                             Navicula ovalis
                                                   Navicula ovalis f. angusta
                                                   Navicula ovalis f. elongata
                                                   Navicula ovalis f. minor
                                               Navicula ovalis var. fossilis
                                               Navicula ovalis var. oblongella
                                             Navicula ovata
                                             Navicula oviformis
                                             Navicula ovulum
                                             Navicula oxeia
                                             Navicula oxigua
                                             Navicula oxyphyllum
                                             Navicula oxyptera
                                             Navicula oxysphenia
                                             Navicula paanaensis
                                             Navicula paca
                                             Navicula pacardi
                                             Navicula pacha
                                             Navicula pachycephala
                                             Navicula pachyptera
                                             Navicula pacifica
                                             Navicula paeninsulae
                                             Navicula pagesi
                                             Navicula pagophila
                                               Navicula pagophila var. manitounukensis
                                             Navicula palea
                                             Navicula paleacea
                                             Navicula palearctica
                                             Navicula palestinae
                                             Navicula pallavicinii
                                             Navicula pallescens
                                             Navicula pallida
                                             Navicula palpebralis
                                                   [Schizonema palpebrale]
                                                   Navicula palpebralis f. minor
                                                   Navicula palpebralis f. vahliana
                                               Navicula palpebralis var. angulosa
                                               Navicula palpebralis var. barclayana
                                               Navicula palpebralis var. botteriana
                                               Navicula palpebralis var. minor
                                               Navicula palpebralis var. obtusa
                                               Navicula palpebralis var. pontica
                                               Navicula palpebralis var. protracta
                                               Navicula palpebralis var. robusta
                                               Navicula palpebralis var. semiplena
                                             Navicula palpebrulum
                                             Navicula paludinarum
                                               Navicula paludinarum var. gracilior
                                             Navicula paludosa
                                                   Navicula paludosa f. rhomboidea
                                             Navicula palustris
                                                   Navicula palustris f. capitata
                                             Navicula pampaeana
                                             Navicula pampeana
                                               Navicula pampeana var. major
                                               Navicula pampeana var. minor
                                             Navicula panda
                                             Navicula pangeroni
                                             Navicula panhalgarhensis
                                             Navicula pannonica
                                             Navicula pannosa
                                             Navicula pantocseki
                                             Navicula pantocsekiana
                                             Navicula papillifera
                                             Navicula parabilis
                                             Navicula parablis
                                             Navicula parabryophila
                                             Navicula paracari
                                             Navicula paradoxa
                                             Navicula parahasta
                                             Navicula parallela
                                             Navicula parallelistriata
                                             Navicula paramutica
                                               Navicula paramutica var. binodis
                                             Navicula paranipponica
                                             Navicula pararabda
                                             Navicula parasura
                                             Navicula paratunkas
                                             Navicula parca
                                               Navicula parca var. producta
                                             Navicula parenculoides
                                             Navicula parentum
                                             Navicula pargemina
                                             Navicula parinacota
                                             Navicula paripinnata
                                             Navicula parlepida
                                             Navicula parmula
                                             Navicula parodia
                                             Navicula partabgarhensis
                                             Navicula particulus
                                             Navicula partita
                                             Navicula parunculus
                                             Navicula parvipenda
                                             Navicula parvipendata
                                             Navicula parvula
                                               Navicula parvula var. prominula
                                             Navicula pascuorum
                                             Navicula patagonica
                                               Navicula patagonica var. schmidtii
                                             Navicula patricia
                                             Navicula patrickae
                                             Navicula patrina
                                             Navicula patula
                                             Navicula paucis
                                             Navicula paucivisitata
                                             Navicula paul-schulzii
                                             Navicula paulina
                                             Navicula paulseniana
                                             Navicula paupercula
                                             Navicula pavida
                                             Navicula pavillardi
                                             Navicula pavillardii
                                             Navicula pectinalis
                                             Navicula peculiarisis
                                             Navicula pedalis
                                             Navicula pediculus
                                             Navicula peg?enensis
                                             Navicula peguana
                                             Navicula peisonis
                                               Navicula peisonis var. capitata
                                             Navicula pelagi
                                             Navicula pelagica
                                                   [Stauropsis pelagica]
                                             Navicula pellicola
                                             Navicula pelliculosa
                                               Navicula pelliculosa var. ceylonica
                                             Navicula pellucida
                                             Navicula pellucidoides
                                             Navicula pellucidula
                                                   Navicula pellucidula f. contracta
                                             Navicula pelta
                                             Navicula peltoensis
                                             Navicula peltoides
                                             Navicula pennata
                                                   [Schizonema pennatum]
                                                   Navicula pennata f. maxima
                                               Navicula pennata var. kinkeri
                                               Navicula pennata var. maxima
                                               Navicula pennata var. pontica
                                             Navicula pensacolae
                                             Navicula peracuta
                                             Navicula peragalli
                                               Navicula peragalli var. gracilis
                                             Navicula perducta
                                             Navicula perdurrans
                                             Navicula peregrina
                                                   [Pinnularia peregrina]
                                                   [Schizonema peregrinum]
                                                   Navicula peregrina f. acuta
                                                   Navicula peregrina f. angusta
                                                   Navicula peregrina f. curta
                                                   Navicula peregrina f. fossilis
                                                   Navicula peregrina f. kefvingensis
                                                   Navicula peregrina f. minor
                                               Navicula peregrina var. asiatica
                                               Navicula peregrina var. calcuttensis
                                               Navicula peregrina var. cuneata
                                               Navicula peregrina var. curta
                                               Navicula peregrina var. elliptica
                                               Navicula peregrina var. fossilis
                                               Navicula peregrina var. genuina
                                               Navicula peregrina var. hankensis
                                               Navicula peregrina var. intermedia
                                               Navicula peregrina var. jeniseyensis
                                               Navicula peregrina var. lanceolata
                                               Navicula peregrina var. meniscus
                                               Navicula peregrina var. minusculus
                                               Navicula peregrina var. minuta
                                               Navicula peregrina var. nipponica
                                               Navicula peregrina var. oblonga
                                               Navicula peregrina var. obtusa
                                               Navicula peregrina var. peregrina
                                               Navicula peregrina var. perlonga
                                               Navicula peregrina var. polaris
                                               Navicula peregrina var. producta
                                               Navicula peregrina var. sinica
                                               Navicula peregrina var. sublinearis
                                               Navicula peregrina var. tengganoensis
                                               Navicula peregrina var. upsaliensis
                                             Navicula peregrinoides
                                             Navicula peregrinopsis
                                             Navicula perelegans
                                             Navicula perennis
                                             Navicula perexigua
                                             Navicula perfecta
                                               Navicula perfecta var. letourneurii
                                             Navicula perfida
                                             Navicula pergamonensis
                                                   Navicula pergamonensis f. acuminata
                                             Navicula perhibita
                                             Navicula peripunctata
                                             Navicula perlatoides
                                             Navicula perlepida
                                             Navicula perlonga
                                             Navicula perlucens
                                             Navicula perlucida
                                                   Navicula perlucida f. angustata
                                             Navicula perminuta
                                                   [Navicula cryptocephala var. perminuta]
                                                   [Navicula diserta]
                                                   [Navicula disterta]
                                                   [Navicula hanseni]
                                                   [Navicula mendotia]
                                             Navicula perobesa
                                             Navicula perparva
                                             Navicula perpendicularis
                                             Navicula perplexa
                                             Navicula perpusilla
                                               Navicula perpusilla var. asiatica
                                               Navicula perpusilla var. capitata
                                               Navicula perpusilla var. distans
                                               Navicula perpusilla var. lanceolata
                                               Navicula perpusilla var. subperpusilla
                                             Navicula perrhombus
                                             Navicula perrotettii
                                                   Navicula perrotettii f. ceylonica
                                                   Navicula perrotettii f. minor
                                               Navicula perrotettii var. enervis
                                               Navicula perrotettii var. rostrata
                                             Navicula perryana
                                             Navicula persculpta
                                             Navicula persica
                                             Navicula persignata
                                             Navicula perspicilliata
                                             Navicula pertensa
                                             Navicula pertinax
                                             Navicula perturbata
                                             Navicula pervasta
                                             Navicula peterseni
                                                   Navicula peterseni f. gomphonemoides
                                                   Navicula peterseni f. undulata
                                             Navicula petersenii
                                             Navicula petersii
                                             Navicula peticolasii
                                             Navicula petilina
                                             Navicula petitina
                                             Navicula phalangium
                                             Navicula phantasma
                                             Navicula phi
                                             Navicula philippina
                                             Navicula philippinarum
                                             Navicula phoenicenteron
                                               Navicula phoenicenteron var. genuina
                                               Navicula phoenicenteron var. irregularis
                                             Navicula phyllepta
                                                   [Navicula istriana]
                                                   [Navicula minuscula var. istriana]
                                             Navicula phylleptosoma
                                             Navicula phylleptosomaformis
                                             Navicula phyllophaena
                                             Navicula pi
                                             Navicula pileda
                                             Navicula pinguis
                                             Navicula pinnata
                                               Navicula pinnata var. pontica
                                             Navicula pinnularia
                                               Navicula pinnularia var. asymmetrica
                                               Navicula pinnularia var. baltica
                                               Navicula pinnularia var. bicontracta
                                               Navicula pinnularia var. gibbosa
                                               Navicula pinnularia var. interrupta
                                               Navicula pinnularia var. maxima
                                               Navicula pinnularia var. minima
                                               Navicula pinnularia var. minor
                                               Navicula pinnularia var. seyschellensis
                                               Navicula pinnularia var. soederlundii
                                               Navicula pinnularia var. subconstricta
                                               Navicula pinnularia var. tahitensis
                                             Navicula pinnularioides
                                                   Navicula pinnularioides f. continua
                                             Navicula pistillum
                                             Navicula placenta
                                                   Navicula placenta f. curta
                                               Navicula placenta var. obtusa
                                             Navicula placentiformis
                                             Navicula placida
                                             Navicula placita
                                             Navicula plana
                                             Navicula planiceps
                                             Navicula planmembranacea
                                             Navicula platalea
                                             Navicula platensis
                                             Navicula platessa
                                             Navicula plathii
                                             Navicula platycephala
                                             Navicula platystoma
                                               Navicula platystoma var. bengalensis
                                               Navicula platystoma var. lanceolata
                                               Navicula platystoma var. minor
                                               Navicula platystoma var. pantocseki
                                               Navicula platystoma var. pantocsekii
                                             Navicula platyventris
                                             Navicula pletura
                                             Navicula pleurostauroides
                                             Navicula pleurostaurum
                                             Navicula plicata
                                                   Navicula plicata f. constrita
                                               Navicula plicata var. sumatrana
                                             Navicula plicatoides
                                             Navicula plicatula
                                             Navicula plitvicensis
                                             Navicula plumbicolor
                                             Navicula pluscula
                                             Navicula plutonia
                                             Navicula podolica
                                             Navicula podzorskii
                                             Navicula poirieri
                                             Navicula polae
                                             Navicula polaris
                                             Navicula polita
                                             Navicula polygibba
                                             Navicula polygona
                                             Navicula polygramma
                                                   Navicula polygramma f. elliptica
                                                   Navicula polygramma f. lanceolata
                                             Navicula polyonca
                                             Navicula polysticta
                                             Navicula polystoma
                                             Navicula ponticula
                                             Navicula ponticulus
                                             Navicula poretzkiae
                                             Navicula porifera
                                               Navicula porifera var. opportuna
                                             Navicula porocera
                                             Navicula porrecta
                                             Navicula portanova
                                             Navicula portaregiensis
                                             Navicula porticola
                                             Navicula porto-montana
                                             Navicula porto-monttana
                                               Navicula porto-monttana var. fuegiana
                                             Navicula portomontana
                                             Navicula poseidon
                                             Navicula potzgeri
                                               Navicula potzgeri var. quadripunctata
                                             Navicula powelli
                                               Navicula powelli var. gallapagensis
                                             Navicula powellii
                                               Navicula powellii var. vidovichii
                                             Navicula praeclara
                                             Navicula praedicabilis
                                             Navicula praedii
                                             Navicula praeflua
                                             Navicula praegnans
                                             Navicula praerupta
                                             Navicula praesecta
                                             Navicula praestes
                                             Navicula praeterita
                                             Navicula praetexta
                                                   Navicula praetexta f. minor
                                               Navicula praetexta var. abnormis
                                               Navicula praetexta var. abundans
                                               Navicula praetexta var. antarctica
                                               Navicula praetexta var. gaussii
                                               Navicula praetexta var. haytiana
                                               Navicula praetexta var. lunyaczeki
                                               Navicula praetexta var. nebulosa
                                             Navicula pragma
                                             Navicula pragmatica
                                             Navicula pressa
                                             Navicula priaslooii
                                             Navicula primordialis
                                             Navicula prinslooii
                                             Navicula prisca
                                             Navicula pristiophora
                                             Navicula probabilis
                                             Navicula problematica
                                             Navicula procera
                                             Navicula prodiga
                                             Navicula producta
                                             Navicula prominula
                                             Navicula promota
                                             Navicula propinqua
                                             Navicula proserpinae
                                             Navicula protearum
                                             Navicula protracta
                                                   [Navicula crucicula var. protracta]
                                                   [Navicula lundstroemii var. protracta]
                                                   [Pinnularia protracta]
                                                   [Placoneis protracta]
                                                   Navicula protracta f. conspicua
                                                   Navicula protracta f. minor
                                                   Navicula protracta f. nipponica
                                                   Navicula protracta f. subcapitata
                                               Navicula protracta var. capitata
                                               Navicula protracta var. elliptica
                                               Navicula protracta var. maxima
                                               Navicula protracta var. minuta
                                               Navicula protracta var. subcapitata
                                               Navicula protracta var. undulata
                                             Navicula proveniens
                                             Navicula proxima
                                             Navicula pseucokryokonites
                                             Navicula pseudanglica
                                               Navicula pseudanglica var. signata
                                             Navicula pseudannulata
                                             Navicula pseudislandica
                                             Navicula pseudo-bacillum
                                               Navicula pseudo-bacillum var. elapsa
                                             Navicula pseudo-clavata
                                             Navicula pseudo-contenta
                                             Navicula pseudo-dicephala
                                             Navicula pseudo-hochstetterii
                                             Navicula pseudo-quadratarea
                                             Navicula pseudo-schoenfeldii
                                             Navicula pseudo-stauropteroides
                                             Navicula pseudoanglica
                                             Navicula pseudoarvensis
                                             Navicula pseudoaspera
                                             Navicula pseudobacillum
                                                   Navicula pseudobacillum f. minor
                                               Navicula pseudobacillum var. fossilis
                                               Navicula pseudobacillum var. lanceolata
                                               Navicula pseudobacillum var. major
                                               Navicula pseudobacillum var. rostrata
                                             Navicula pseudobrehmii
                                             Navicula pseudobrevissima
                                             Navicula pseudobrockmannii
                                             Navicula pseudobryophila
                                             Navicula pseudocari
                                               Navicula pseudocari var. minor
                                             Navicula pseudocarinifera
                                             Navicula pseudocarminata
                                             Navicula pseudociliata
                                             Navicula pseudocincta
                                             Navicula pseudocitrus
                                             Navicula pseudoclamans
                                             Navicula pseudoclavata
                                             Navicula pseudoclementis
                                             Navicula pseudococconeiformis
                                             Navicula pseudoconcamerata
                                             Navicula pseudoconfervacea
                                             Navicula pseudoconstans
                                             Navicula pseudocrucicula
                                             Navicula pseudocryptocephala
                                             Navicula pseudocurta
                                             Navicula pseudocuspidata
                                               Navicula pseudocuspidata var. rostrata
                                             Navicula pseudodemerarae
                                             Navicula pseudodispensata
                                             Navicula pseudodispersa
                                             Navicula pseudoexilissima
                                             Navicula pseudofossalis
                                             Navicula pseudofossilis
                                             Navicula pseudofrickia
                                             Navicula pseudofrugalis
                                             Navicula pseudofusca
                                             Navicula pseudogamma
                                             Navicula pseudogemmata
                                             Navicula pseudoglacialis
                                             Navicula pseudogracilis
                                               Navicula pseudogracilis var. conspicusa
                                               Navicula pseudogracilis var. unicostata
                                             Navicula pseudographa
                                             Navicula pseudogrimmei
                                             Navicula pseudohasta
                                             Navicula pseudohumilis
                                             Navicula pseudoincerta
                                             Navicula pseudoinflata
                                             Navicula pseudoingrata
                                             Navicula pseudoinsociabilis
                                             Navicula pseudojacobii
                                             Navicula pseudokrasskei
                                             Navicula pseudokryokonites
                                             Navicula pseudolacertosa
                                             Navicula pseudolacustris
                                                   Navicula pseudolacustris f. apiculata
                                             Navicula pseudolagerheimii
                                             Navicula pseudolagerstedtii
                                             Navicula pseudolanceolata
                                             Navicula pseudolapidosa
                                             Navicula pseudolinearis
                                             Navicula pseudolitoricola
                                             Navicula pseudolucidula
                                             Navicula pseudomediopartita
                                             Navicula pseudomembranacea
                                             Navicula pseudomenisculus
                                             Navicula pseudominuscula
                                             Navicula pseudomuraliformis
                                             Navicula pseudonaumannii
                                             Navicula pseudonivalis
                                             Navicula pseudoorthoneoides
                                             Navicula pseudopalpebralis
                                             Navicula pseudopelliculosa
                                             Navicula pseudopima
                                                   Navicula pseudopima f. lanceolata
                                             Navicula pseudoporifera
                                             Navicula pseudoppugnata
                                             Navicula pseudoreinhardtii
                                             Navicula pseudorthoneoides
                                             Navicula pseudorupicola
                                             Navicula pseudosalinarioides
                                             Navicula pseudosalinarum
                                             Navicula pseudoscutiformis
                                               Navicula pseudoscutiformis var. minutissima
                                             Navicula pseudoseminulum
                                               Navicula pseudoseminulum var. curta
                                             Navicula pseudosepta
                                             Navicula pseudosilicula
                                                   Navicula pseudosilicula f. olympica
                                               Navicula pseudosilicula var. olympica
                                             Navicula pseudosiliculaoides
                                             Navicula pseudostrearia
                                             Navicula pseudostundii
                                             Navicula pseudosydowii
                                             Navicula pseudotemeraria
                                             Navicula pseudotenelloides
                                             Navicula pseudotenera
                                             Navicula pseudothienemannii
                                             Navicula pseudoventosa
                                             Navicula pudens
                                             Navicula pudibundus
                                             Navicula pudica
                                             Navicula pugio
                                             Navicula pulchella
                                             Navicula pulchra
                                             Navicula pulchripora
                                             Navicula pullus
                                             Navicula pulverea
                                             Navicula pulverentula
                                             Navicula pulvulenta
                                             Navicula pumila
                                               Navicula pumila var. fossilis
                                             Navicula puncticulata
                                             Navicula punctifera
                                             Navicula punctulata
                                               Navicula punctulata var. cluthensis
                                               Navicula punctulata var. finmarchica
                                               Navicula punctulata var. novae
                                               Navicula punctulata var. pagophila
                                               Navicula punctulata var. striolata
                                             Navicula pungens
                                             Navicula pupilla
                                             Navicula pupula
                                                   Navicula pupula f. elongata
                                                   Navicula pupula f. linearis
                                                   Navicula pupula f. lucida
                                                   Navicula pupula f. minuta
                                                   Navicula pupula f. minutula
                                                   Navicula pupula f. rostrata
                                                   Navicula pupula f. undulata
                                               Navicula pupula var. baicalensis
                                               Navicula pupula var. capitata
                                               Navicula pupula var. convergens
                                               Navicula pupula var. hollerupensis
                                               Navicula pupula var. koreana
                                               Navicula pupula var. rostrata
                                               Navicula pupula var. subcapitata
                                               Navicula pupula var. subrostrata
                                               Navicula pupula var. undulata
                                             Navicula pupuloides
                                             Navicula pusilla
                                                   Navicula pusilla f. major
                                                   Navicula pusilla f. minor
                                                   Navicula pusilla f. nimia
                                                   Navicula pusilla f. pulchra
                                               Navicula pusilla var. alpestris
                                               Navicula pusilla var. capitata
                                               Navicula pusilla var. cochinchinensis
                                               Navicula pusilla var. fossilis
                                               Navicula pusilla var. incognita
                                               Navicula pusilla var. jacutica
                                               Navicula pusilla var. jamalinensis
                                               Navicula pusilla var. lanceolata
                                               Navicula pusilla var. pusillissima
                                               Navicula pusilla var. spitzbergensis
                                             Navicula pusilloides
                                             Navicula pusio
                                                   Navicula pusio f. minuta
                                               Navicula pusio var. arcuata
                                             Navicula pusioides
                                             Navicula pygmaea
                                                   Navicula pygmaea f. minor
                                               Navicula pygmaea var. cuneata
                                               Navicula pygmaea var. indica
                                               Navicula pygmaea var. linearis
                                               Navicula pygmaea var. producta
                                               Navicula pygmaea var. rhomboidea
                                             Navicula pygmaeformis
                                             Navicula pyrenaica
                                             Navicula quadrangulis
                                             Navicula quadratarea
                                               Navicula quadratarea var. antarctica
                                             Navicula quadri-undulata
                                             Navicula quadricostata
                                             Navicula quadrifasciata
                                             Navicula quadrimaculata
                                             Navicula quadripunctata
                                             Navicula quadriseriata
                                             Navicula quadrisinuata
                                             Navicula quadrisulcata
                                             Navicula quadriundulata
                                             Navicula quaesita
                                             Navicula quarnerensis
                                             Navicula quarnerensoides
                                             Navicula quasidisjuncta
                                             Navicula quaterna
                                             Navicula quaternaria
                                             Navicula quechua
                                             Navicula quercyana
                                             Navicula quincunx
                                             Navicula quinquenodis
                                             Navicula quintiana
                                             Navicula quodest
                                             Navicula rabenhorstii
                                               Navicula rabenhorstii var. linearis
                                             Navicula radians
                                             Navicula radiata
                                               Navicula radiata var. acuta
                                             Navicula radiopunctata
                                             Navicula radiosa
                                                   [Navicula gracilis var. radiosa]
                                                   [Navicula radiosa var. acuta]
                                                   [Pinnularia acuta]
                                                   [Schizonema radiosum]
                                                   Navicula radiosa f. divergentissima
                                                   Navicula radiosa f. intermedia
                                                   Navicula radiosa f. nipponica
                                               Navicula radiosa var. avenacea
                                               Navicula radiosa var. dubravicensis
                                               Navicula radiosa var. genuina
                                               Navicula radiosa var. hankensis
                                               Navicula radiosa var. intermedia
                                               Navicula radiosa var. jeniseyensis
                                               Navicula radiosa var. longa
                                               Navicula radiosa var. manschurica
                                               Navicula radiosa var. meniscus
                                               Navicula radiosa var. radiosa
                                               Navicula radiosa var. silesiaca
                                               Navicula radiosa var. subrostrata
                                               Navicula radiosa var. subtenella
                                             Navicula radiosaeformis
                                             Navicula radiosafallax
                                                   [Navicula radiosa var. parva]
                                             Navicula radiosiola
                                             Navicula radiostriata
                                             Navicula raeana
                                             Navicula rainierensis
                                             Navicula rajmundii
                                             Navicula rakowskae
                                             Navicula ramosissima
                                                   [Schizonema ramosissima]
                                                   Navicula ramosissima f. amplia
                                                   Navicula ramosissima f. amplior
                                                   Navicula ramosissima f. caspia
                                                   Navicula ramosissima f. genuina
                                               Navicula ramosissima var. amplia
                                               Navicula ramosissima var. mollis
                                                     [Schizonema ramosissimum var. molle]
                                                     [Schizonema smithii var. torquatum]
                                                     [Schizonema torquatum]
                                               Navicula ramosissima var. mucosa
                                                     [Schizonema ramosissimum var. mucosum]
                                               Navicula ramosissima var. torquata
                                             Navicula ramosissimoides
                                             Navicula ramphoides
                                             Navicula rancurellii
                                             Navicula ranomafanensis
                                             Navicula raphoneis
                                             Navicula rapsonii
                                             Navicula rara
                                             Navicula rasa
                                             Navicula rattrayi
                                             Navicula rauhii
                                             Navicula rautenbachiae
                                             Navicula ravinae
                                             Navicula recava
                                             Navicula recens
                                                   [Navicula cari var. recens]
                                             Navicula recognita
                                             Navicula recondita
                                               Navicula recondita var. recondita
                                             Navicula recta
                                             Navicula recte-lineata
                                             Navicula rectum
                                             Navicula recurva
                                             Navicula recurvata
                                             Navicula regata
                                             Navicula regate
                                             Navicula regelii
                                             Navicula regelli
                                             Navicula regressa
                                             Navicula regula
                                               Navicula regula var. lumen
                                             Navicula regularis
                                               Navicula regularis var. africana
                                             Navicula reichardtiana
                                             Navicula reichardtii
                                               Navicula reichardtii var. tschutchschorum
                                             Navicula reimeri
                                             Navicula reimerites
                                             Navicula reinhardti
                                                   Navicula reinhardti f. rhomboides
                                             Navicula reinhardtii
                                                   Navicula reinhardtii f. curta
                                                   Navicula reinhardtii f. lanceolata
                                               Navicula reinhardtii var. elliptica
                                               Navicula reinhardtii var. genuina
                                               Navicula reinhardtii var. jenisseyensis
                                               Navicula reinhardtii var. ovalis
                                               Navicula reinhardtii var. producta
                                               Navicula reinhardtii var. reinhardtii
                                             Navicula reinickeana
                                             Navicula reissii
                                             Navicula relicta
                                             Navicula renauldi
                                               Navicula renauldi var. major
                                             Navicula repentina
                                             Navicula resecta
                                             Navicula reservata
                                             Navicula residua
                                             Navicula restitua
                                             Navicula restituta
                                             Navicula reticulata
                                             Navicula reticulo-radiata
                                             Navicula retinenda
                                             Navicula retracta
                                             Navicula retrica
                                             Navicula retrostauros
                                             Navicula retusa
                                               Navicula retusa var. elongata
                                               Navicula retusa var. gregorii
                                             Navicula reusii
                                             Navicula reversa
                                             Navicula rhaphoneis
                                             Navicula rho
                                             Navicula rhodana
                                             Navicula rhombea
                                             Navicula rhombica
                                                   Navicula rhombica f. latior
                                               Navicula rhombica var. adeliae
                                               Navicula rhombica var. japonica
                                             Navicula rhombiformis
                                             Navicula rhomboidas
                                                   Navicula rhomboidas f. obtusa
                                             Navicula rhomboides
                                                   Navicula rhomboides f. elliptica
                                               Navicula rhomboides var. obtusa
                                             Navicula rhombulus
                                             Navicula rhynchocephala
                                                   [Navicula rhynchocephala var. constricta]
                                                   [Schizonema rhynchocephala]
                                                   Navicula rhynchocephala f. hankensis
                                                   Navicula rhynchocephala f. intermedia
                                                   Navicula rhynchocephala f. koreana
                                                   Navicula rhynchocephala f. parva
                                                   Navicula rhynchocephala f. robusta
                                                   Navicula rhynchocephala f. schumanni
                                               Navicula rhynchocephala var. antiqua
                                               Navicula rhynchocephala var. biceps
                                               Navicula rhynchocephala var. brevis
                                               Navicula rhynchocephala var. curta
                                               Navicula rhynchocephala var. dubia
                                               Navicula rhynchocephala var. elongata
                                               Navicula rhynchocephala var. genevensis
                                               Navicula rhynchocephala var. genuina
                                               Navicula rhynchocephala var. germanii
                                               Navicula rhynchocephala var. grunowii
                                               Navicula rhynchocephala var. hankensis
                                               Navicula rhynchocephala var. jeniseyensis
                                               Navicula rhynchocephala var. leptocephala
                                               Navicula rhynchocephala var. nepouiana
                                               Navicula rhynchocephala var. omica
                                               Navicula rhynchocephala var. orientalis
                                               Navicula rhynchocephala var. permagna
                                               Navicula rhynchocephala var. rostellata
                                               Navicula rhynchocephala var. tenua
                                             Navicula rhynchocephaloides
                                             Navicula rhynchotella
                                                   [Navicula rhynchocephala var. amphiceros]
                                                   [Navicula viridula var. amphiceros]
                                             Navicula ricardae
                                             Navicula ricardii
                                             Navicula richardsoniana
                                             Navicula ridelii
                                             Navicula riediana
                                             Navicula rimosa
                                             Navicula riojae
                                               Navicula riojae var. punctata
                                             Navicula riotecensis
                                             Navicula riparta
                                             Navicula rivalis
                                             Navicula rivularis
                                             Navicula rivulensis
                                             Navicula rivulorum
                                             Navicula robertsiana
                                                   Navicula robertsiana f. abnormis
                                                   Navicula robertsiana f. bullata
                                                   Navicula robertsiana f. fornicata
                                                   Navicula robertsiana f. typica
                                               Navicula robertsiana var. abnormis
                                               Navicula robertsiana var. cuneata
                                               Navicula robertsiana var. recta
                                             Navicula robertsii
                                             Navicula robista
                                             Navicula robusta
                                             Navicula rogalli
                                             Navicula rogallii
                                             Navicula rogersii
                                             Navicula rolandii
                                             Navicula romana
                                             Navicula romanowii
                                             Navicula rombaueriana
                                             Navicula rosenbergii
                                             Navicula rossiana
                                             Navicula rossii
                                             Navicula rostellata
                                                   Navicula rostellata f. minor
                                               Navicula rostellata var. biwensis
                                               Navicula rostellata var. nipponica
                                             Navicula rostellifera
                                             Navicula rostelloides
                                             Navicula rostellum
                                             Navicula rostrata
                                                   Navicula rostrata f. major
                                                   Navicula rostrata f. minor
                                             Navicula rotaeana
                                                   [Schizonema roateanum]
                                                   [Stauroneis rotaeana]
                                                   Navicula rotaeana f. crucifera
                                                   Navicula rotaeana f. fasciata
                                                   Navicula rotaeana f. linearis
                                                   Navicula rotaeana f. major
                                               Navicula rotaeana var. fasciata
                                               Navicula rotaeana var. genuina
                                               Navicula rotaeana var. oblongella
                                             Navicula rotaena
                                             Navicula rotesta
                                             Navicula rotula
                                             Navicula rotunda
                                             Navicula rotundella
                                             Navicula rouxioidea
                                             Navicula rudiformis
                                             Navicula rudis
                                             Navicula rugosa
                                             Navicula rumaniensis
                                             Navicula runtuensis
                                             Navicula rupestris
                                               Navicula rupestris var. semicruciata
                                             Navicula rupicola
                                             Navicula rusticensis
                                             Navicula ruttneri
                                               Navicula ruttneri var. capitata
                                               Navicula ruttneri var. chilensis
                                               Navicula ruttneri var. rostrata
                                             Navicula sabae
                                                   [Pinnularia sabae]
                                             Navicula sabiniana
                                             Navicula sacrophagus
                                             Navicula saeptata
                                             Navicula sagitta
                                             Navicula sahyadrensis
                                             Navicula salaria
                                             Navicula salebrosa
                                             Navicula salinaroides
                                             Navicula salinarum
                                                   [Schizonema salinarum]
                                                   Navicula salinarum f. arcuata
                                                   Navicula salinarum f. capitata
                                                   Navicula salinarum f. parallela
                                               Navicula salinarum var. minima
                                               Navicula salinarum var. nipponica
                                               Navicula salinarum var. rostrata
                                                     [Navicula cyprinus var. rostrata]
                                                     [Navicula digitoradiata var. rostrata]
                                               Navicula salinarum var. salinarum
                                             Navicula salinicola
                                                   [Navicula incerta]
                                                   [Navicula incertata]
                                                   [Schizonema incertum]
                                               Navicula salinicola var. boliviana
                                             Navicula salsa
                                             Navicula salva
                                             Navicula sambiensis
                                             Navicula sampronia
                                             Navicula samrai
                                             Navicula sanctacrux
                                             Navicula sanctaecrucis
                                             Navicula sanctibenedicti
                                             Navicula sancticaroli
                                             Navicula sanctithomae
                                             Navicula sandegrenii
                                             Navicula sandegrinii
                                             Navicula sandriana
                                                   Navicula sandriana f. laevis
                                               Navicula sandriana var. fossilis
                                               Navicula sandriana var. laevis
                                             Navicula sansegana
                                             Navicula sansomei
                                             Navicula santa-crux
                                             Navicula santapauii
                                             Navicula sarolata
                                                   Navicula sarolata f. capitata
                                             Navicula satura
                                             Navicula saugerii
                                             Navicula savannae
                                             Navicula savannahiana
                                             Navicula scabellum
                                                   Navicula scabellum f. major
                                             Navicula scabriuscula
                                               Navicula scabriuscula var. angusta
                                             Navicula scala
                                             Navicula scalarifer
                                             Navicula scalaris
                                             Navicula scalifera
                                             Navicula scalpellum
                                             Navicula scalpia
                                             Navicula scandinaviae
                                             Navicula scandinavica
                                             Navicula scaniae
                                             Navicula scanica
                                             Navicula scela
                                             Navicula schadei
                                             Navicula schadeiformis
                                             Navicula schaeferi
                                             Navicula schassmanii
                                             Navicula schassmannii
                                             Navicula schefterae
                                             Navicula schilberszky
                                               Navicula schilberszky var. gibba
                                             Navicula schiracka
                                             Navicula schirschowii
                                             Navicula schmassmannii
                                             Navicula schmidtiana
                                             Navicula schmidtii
                                               Navicula schmidtii var. skagerakiensis
                                             Navicula schneideri
                                             Navicula schoemaniana
                                             Navicula schoenfeldii
                                                   Navicula schoenfeldii f. palustris
                                               Navicula schoenfeldii var. diversipunctata
                                             Navicula schoenfeldtii
                                               Navicula schoenfeldtii var. capitata
                                               Navicula schoenfeldtii var. minor
                                             Navicula schomburgkii
                                             Navicula schomburgkorum
                                             Navicula schonfeldii
                                             Navicula schonkenii
                                             Navicula schroeteri
                                               Navicula schroeteri var. meisteri
                                             Navicula schubarti
                                             Navicula schubartii
                                             Navicula schuettii
                                                   Navicula schuettii f. minor
                                               Navicula schuettii var. laevis
                                             Navicula schultzei
                                               Navicula schultzei var. mexicana
                                             Navicula schulzii
                                               Navicula schulzii var. californica
                                               Navicula schulzii var. marylandica
                                             Navicula schumanniana
                                               Navicula schumanniana var. rhomboides
                                             Navicula schuttii
                                               Navicula schuttii var. minor
                                             Navicula schwabei
                                             Navicula schšenfeldii
                                             Navicula scintillans
                                             Navicula scintillosa
                                             Navicula scirpus
                                             Navicula scita
                                             Navicula scoliopleura
                                             Navicula scoliopleuroides
                                             Navicula scopulorum
                                                   Navicula scopulorum f. belgica
                                               Navicula scopulorum var. arctica
                                               Navicula scopulorum var. belgica
                                                     [Navicula johnsonii var. belgica]
                                               Navicula scopulorum var. major
                                               Navicula scopulorum var. perlonga
                                             Navicula scoresbyi
                                             Navicula scotica
                                             Navicula scottiae
                                             Navicula sculpta
                                                   Navicula sculpta f. undulata
                                               Navicula sculpta var. apiculata
                                               Navicula sculpta var. doliolus
                                               Navicula sculpta var. gigantea
                                               Navicula sculpta var. minima
                                               Navicula sculpta var. minor
                                               Navicula sculpta var. ornata
                                               Navicula sculpta var. protracta
                                               Navicula sculpta var. rostrata
                                               Navicula sculpta var. temperei
                                             Navicula scutalloides
                                               Navicula scutalloides var. mocarensis
                                             Navicula scutelliformis
                                                   Navicula scutelliformis f. minuta
                                             Navicula scutelloides
                                                   Navicula scutelloides f. minor
                                               Navicula scutelloides var. minutissima
                                               Navicula scutelloides var. mocarensis
                                               Navicula scutelloides var. nipponica
                                               Navicula scutelloides var. tenuis
                                             Navicula scutellum
                                             Navicula scutiformis
                                                   Navicula scutiformis f. transilvaniae
                                             Navicula scutula
                                             Navicula scutum
                                                   [Schizonema scutum]
                                               Navicula scutum var. lapponica
                                             Navicula scythica
                                             Navicula secreta
                                               Navicula secreta var. apiculata
                                                     [Navicula expecta var. apiculata]
                                             Navicula sectilis
                                               Navicula sectilis var. boryana
                                             Navicula secundinuda
                                             Navicula secura
                                             Navicula seductilis
                                             Navicula seibigiana
                                             Navicula seibigii
                                             Navicula seippiana
                                             Navicula sejuncta
                                             Navicula sellaphora
                                               Navicula sellaphora var. capitata
                                             Navicula semen
                                                   [Amphiprora navicularis]
                                                   [Navicula navicularis]
                                                   [Pinnularia semen]
                                                   [Placoneis navicularis]
                                                   Navicula semen f. elliptica
                                               Navicula semen var. attenuata
                                               Navicula semen var. lineata
                                               Navicula semen var. minor
                                             Navicula semenoides
                                               Navicula semenoides var. minuteporata
                                             Navicula semi-area
                                             Navicula semiaperta
                                             Navicula semiapproximata
                                                   Navicula semiapproximata f. constricta
                                             Navicula semiarea
                                             Navicula semicruciata
                                             Navicula semidecora
                                             Navicula semidiversa
                                             Navicula semifasciata
                                             Navicula semihyalina
                                             Navicula semiinflata
                                             Navicula semilunum
                                             Navicula seminoides
                                             Navicula seminuda
                                             Navicula seminularia
                                             Navicula seminuloides
                                               Navicula seminuloides var. sumatrensis
                                             Navicula seminulum
                                                   Navicula seminulum f. major
                                               Navicula seminulum var. capitata
                                               Navicula seminulum var. fragilarioides
                                               Navicula seminulum var. hustedtii
                                               Navicula seminulum var. intermedia
                                               Navicula seminulum var. radiosa
                                             Navicula semistauros
                                             Navicula semistriata
                                             Navicula semitecta
                                             Navicula semivirgata
                                             Navicula semota
                                             Navicula senegalensis
                                             Navicula senjoensis
                                             Navicula sennenii
                                             Navicula senonquei
                                             Navicula separabilis
                                             Navicula sepasiensis
                                             Navicula septaeoides
                                             Navicula septata
                                                   Navicula septata f. lancettula
                                             Navicula septataeoides
                                             Navicula septenaria
                                             Navicula septentrionalis
                                                   [Navicula quadripedis]
                                                   [Stauroneis septentrionalis]
                                             Navicula septifera
                                             Navicula sequens
                                             Navicula serena
                                             Navicula serians
                                               Navicula serians var. brachysira
                                               Navicula serians var. peragalli
                                             Navicula serica
                                                   Navicula serica f. undulata
                                             Navicula sericea
                                             Navicula seriosa
                                             Navicula serpentina
                                             Navicula serratula
                                             Navicula setanensis
                                             Navicula setschwanensis
                                             Navicula setzeri
                                             Navicula severascens
                                             Navicula shackletoni
                                               Navicula shackletoni var. pellucida
                                             Navicula shiloi
                                             Navicula siamensis
                                             Navicula siamexilis
                                             Navicula siamlinearis
                                             Navicula sibayiensis
                                             Navicula sibirica
                                               Navicula sibirica var. asymmetrica
                                               Navicula sibirica var. mediterranea
                                             Navicula sicula
                                             Navicula sideralis
                                             Navicula sieboldii
                                             Navicula sieminskiae
                                             Navicula sigma
                                             Navicula sigmaraphis
                                             Navicula sigmoidea
                                             Navicula signata
                                             Navicula silenda
                                             Navicula silens
                                             Navicula silicea
                                             Navicula silicula
                                               Navicula silicula var. diminuta
                                               Navicula silicula var. minuta
                                               Navicula silicula var. parva
                                               Navicula silicula var. patagonica
                                               Navicula silicula var. semicruciata
                                             Navicula siliculaoides
                                             Navicula silvatica
                                                   Navicula silvatica f. acuta
                                             Navicula silvicola
                                             Navicula sima
                                             Navicula simbirskiana
                                             Navicula simiaevultus
                                             Navicula similis
                                               Navicula similis var. grossestriata
                                               Navicula similis var. strigosa
                                             Navicula simonii
                                             Navicula simplex
                                               Navicula simplex var. minor
                                             Navicula simplexoides
                                             Navicula simplus
                                             Navicula simula
                                             Navicula simulans
                                             Navicula simulata
                                             Navicula simulator
                                             Navicula sinensis
                                             Navicula singularis
                                             Navicula sinuata
                                             Navicula sinuiraphe
                                             Navicula sinuosa
                                             Navicula siofokensis
                                                   Navicula siofokensis f. elongata
                                               Navicula siofokensis var. rostrata
                                             Navicula siolii
                                             Navicula sitiens
                                             Navicula sjoersii
                                             Navicula skabitschewskyi
                                             Navicula skalenastriata
                                             Navicula skiftei
                                             Navicula skuae
                                             Navicula skvortzowii
                                             Navicula sleensis
                                             Navicula slesvicensis
                                                   [Navicula viridula var. slesvicensis]
                                             Navicula slesvicensus
                                             Navicula smeerenburgensis
                                             Navicula smithiana
                                             Navicula smithii
                                                   Navicula smithii f. major
                                                   Navicula smithii f. minor
                                               Navicula smithii var. argentina
                                               Navicula smithii var. borealis
                                               Navicula smithii var. elongata
                                               Navicula smithii var. g
                                               Navicula smithii var. laevis
                                               Navicula smithii var. minor
                                               Navicula smithii var. rhombica
                                               Navicula smithii var. subrotunda
                                             Navicula sobralensis
                                             Navicula sobria
                                             Navicula soehrensis
                                                   Navicula soehrensis f. capitata
                                               Navicula soehrensis var. capitata
                                               Navicula soehrensis var. inflata
                                               Navicula soehrensis var. linearis
                                               Navicula soehrensis var. muscicola
                                               Navicula soehrensis var. parallela
                                               Navicula soehrensis var. soehrensis
                                             Navicula solaris
                                             Navicula soleta
                                             Navicula solida
                                             Navicula soluta
                                             Navicula soochowensis
                                             Navicula soodensis
                                               Navicula soodensis var. angustata
                                               Navicula soodensis var. densistriata
                                               Navicula soodensis var. isostauron
                                               Navicula soodensis var. jeniseyensis
                                               Navicula soodensis var. longus
                                               Navicula soodensis var. parallela
                                             Navicula sorella
                                             Navicula sorriensis
                                             Navicula sovereignae
                                             Navicula sparsipunctata
                                             Navicula sparsistriata
                                             Navicula spartinetensis
                                             Navicula spathifera
                                             Navicula spathula
                                             Navicula spatiata
                                             Navicula speciosa
                                             Navicula spectabilis
                                                   Navicula spectabilis f. angelorum
                                                   Navicula spectabilis f. bullata
                                                   Navicula spectabilis f. controversa
                                                   Navicula spectabilis f. emarginata
                                                   Navicula spectabilis f. genuina
                                                   Navicula spectabilis f. inaurata
                                                   Navicula spectabilis f. lata
                                                   Navicula spectabilis f. madagascarensis
                                                   Navicula spectabilis f. moelleriana
                                               Navicula spectabilis var. abbreviata
                                               Navicula spectabilis var. angelorum
                                               Navicula spectabilis var. bacillifera
                                               Navicula spectabilis var. bullata
                                               Navicula spectabilis var. constricta
                                               Navicula spectabilis var. controversa
                                               Navicula spectabilis var. densestriata
                                               Navicula spectabilis var. emarginata
                                               Navicula spectabilis var. excavata
                                               Navicula spectabilis var. hungarica
                                               Navicula spectabilis var. madagascarensis
                                               Navicula spectabilis var. maxima
                                               Navicula spectabilis var. minuta
                                               Navicula spectabilis var. oamaruensis
                                               Navicula spectabilis var. punctata
                                               Navicula spectabilis var. rattrayi
                                               Navicula spectabilis var. schmidtii
                                               Navicula spectabilis var. splendida
                                               Navicula spectabilis var. sub
                                             Navicula spectalissima
                                             Navicula spectrum
                                             Navicula speibonae
                                             Navicula sphaerophora
                                                   Navicula sphaerophora f. minor
                                               Navicula sphaerophora var. laticeps
                                               Navicula sphaerophora var. linearis
                                               Navicula sphaerophora var. obtusa
                                               Navicula sphaerophora var. schmidtii
                                               Navicula sphaerophora var. subcapitata
                                             Navicula sphaeroptera
                                             Navicula sphagnicola
                                             Navicula sphagnophila
                                             Navicula spicoides
                                             Navicula spicula
                                               Navicula spicula var. minima
                                               Navicula spicula var. pulneyensis
                                             Navicula spiculifera
                                             Navicula spiralis
                                             Navicula spirata
                                                   Navicula spirata f. intermedia
                                             Navicula spissata
                                             Navicula splendicula
                                                   [Navicula certa]
                                             Navicula splendida
                                               Navicula splendida var. diplosticta
                                             Navicula sponsa
                                             Navicula spuma
                                             Navicula spuria
                                               Navicula spuria var. asymmetrica
                                             Navicula st.-thomae
                                             Navicula stachurae
                                             Navicula stagnalis
                                             Navicula staminea
                                             Navicula standeri
                                             Navicula stankovicii
                                             Navicula starmachii
                                             Navicula starmachioides
                                             Navicula stauntonii
                                             Navicula staurifera
                                             Navicula stauroptera
                                                   Navicula stauroptera f. gracilis
                                                   Navicula stauroptera f. parva
                                               Navicula stauroptera var. gracilis
                                               Navicula stauroptera var. parva
                                               Navicula stauroptera var. semicruciata
                                             Navicula stauropteroides
                                             Navicula stehlei
                                             Navicula stelligera
                                             Navicula stephanssoni
                                             Navicula stercumuscarum
                                             Navicula stercus-muscarum
                                             Navicula stigmata
                                               Navicula stigmata var. rostrata
                                             Navicula stigmatifera
                                             Navicula stippi
                                             Navicula stodderi
                                               Navicula stodderi var. insignis
                                             Navicula stoermeri
                                             Navicula stokesiana
                                             Navicula stomatophora
                                               Navicula stomatophora var. difficilis
                                             Navicula stompsii
                                             Navicula stradneri
                                             Navicula strangulata
                                             Navicula streckerae
                                             Navicula strenzkii
                                             Navicula striata
                                             Navicula striola
                                             Navicula striolata
                                                   [Navicula digito-radiata var. striolata]
                                                   [Navicula digitoradiata var. striolata]
                                                   [Navicula reinhardtii var. gracilior]
                                             Navicula stroemii
                                               Navicula stroemii var. mujibensis
                                             Navicula stroesei
                                               Navicula stroesei var. stroesei
                                             Navicula structa
                                             Navicula struggeri
                                             Navicula stuxbergii
                                               Navicula stuxbergii var. amphiglottis
                                               Navicula stuxbergii var. cuneata
                                               Navicula stuxbergii var. leptostauron
                                               Navicula stuxbergii var. subcontinua
                                               Navicula stuxbergii var. subglabra
                                             Navicula stygia
                                             Navicula styliformis
                                             Navicula stylus
                                             Navicula suavis
                                             Navicula sub-bacillum
                                             Navicula subacuta
                                               Navicula subacuta var. minor
                                             Navicula subacutis
                                             Navicula subadnata
                                                   [Eolimna subadnata]
                                             Navicula subagnita
                                             Navicula subalata
                                             Navicula subalpina
                                             Navicula subantarctica
                                             Navicula subapiculata
                                             Navicula subarvensis
                                                   Navicula subarvensis f. lata
                                             Navicula subarvensoides
                                             Navicula subbacillum
                                             Navicula subbengalensis
                                             Navicula subcancellata
                                             Navicula subcapitata
                                               Navicula subcapitata var. hilseana
                                               Navicula subcapitata var. stauroneiformis
                                             Navicula subcingulata
                                             Navicula subclementis
                                             Navicula subcoccus
                                             Navicula subcohaerens
                                             Navicula subconcentrica
                                             Navicula subconstricta
                                             Navicula subcontenta
                                               Navicula subcontenta var. africana
                                             Navicula subconveniens
                                             Navicula subcrassirostris
                                             Navicula subcreta
                                             Navicula subcuneata
                                             Navicula subdapaliformis
                                             Navicula subdeliberata
                                             Navicula subdelicata
                                               Navicula subdelicata var. subarctica
                                             Navicula subdicephala
                                                   Navicula subdicephala f. recta
                                             Navicula subdigna
                                             Navicula subdilucida
                                             Navicula subdita
                                             Navicula subdivisa
                                             Navicula subelata
                                                   [Navicula elata]
                                             Navicula subelongata
                                             Navicula subexilissima
                                             Navicula subfasciata
                                             Navicula subfortis
                                             Navicula subfossalis
                                             Navicula subfossilis
                                             Navicula subfraudulenta
                                             Navicula subfusca
                                             Navicula subgastriformis
                                             Navicula subgastrum
                                             Navicula subglabra
                                             Navicula subgrimmei
                                             Navicula subhalophila
                                                   Navicula subhalophila f. fossilis
                                             Navicula subhamulata
                                               Navicula subhamulata var. gibbosa
                                               Navicula subhamulata var. parallela
                                               Navicula subhamulata var. undulata
                                             Navicula subhasta
                                                   [Navicula hasta var. gracilis]
                                             Navicula subhexagona
                                             Navicula subhustedtii
                                             Navicula subhyalina
                                             Navicula subimpressa
                                               Navicula subimpressa var. tenuior
                                             Navicula subinflatoides
                                             Navicula subinsoensis
                                             Navicula subinvicta
                                             Navicula subirritans
                                             Navicula subirroratoides
                                               Navicula subirroratoides var. fossilis
                                             Navicula sublanceolata
                                             Navicula sublyrata
                                             Navicula submissa
                                             Navicula submuticoides
                                             Navicula subnuda
                                               Navicula subnuda var. densestriata
                                             Navicula subnympharum
                                             Navicula subocculata
                                               Navicula subocculata var. baikalensis
                                               Navicula subocculata var. nipponica
                                               Navicula subocculata var. unilateralis
                                             Navicula subocculta
                                             Navicula suborbicularis
                                               Navicula suborbicularis var. costata
                                               Navicula suborbicularis var. forficula
                                               Navicula suborbicularis var. nankoorensis
                                               Navicula suborbicularis var. parva
                                             Navicula suboscitans
                                             Navicula subovalis
                                               Navicula subovalis var. argentina
                                               Navicula subovalis var. major
                                               Navicula subovalis var. minor
                                             Navicula subpatrickae
                                             Navicula subplacentula
                                               Navicula subplacentula var. baikalensis
                                             Navicula subpolaris
                                             Navicula subpupula
                                             Navicula subquadrata
                                             Navicula subradiosa
                                             Navicula subretusa
                                             Navicula subrhombica
                                             Navicula subrhomboidea
                                             Navicula subrhynchocephala
                                                   [Navicula towutiensis]
                                                   Navicula subrhynchocephala f. robusta
                                             Navicula subrhynchocephela
                                             Navicula subrostellata
                                             Navicula subrotunda
                                               Navicula subrotunda var. subquadrata
                                             Navicula subrotundata
                                                   Navicula subrotundata f. lanceolata
                                             Navicula subsalina
                                                   Navicula subsalina f. major
                                               Navicula subsalina var. rivularis
                                             Navicula subsalsa
                                             Navicula subsolaris
                                                   Navicula subsolaris f. brevistriata
                                             Navicula subspectabilis
                                             Navicula subsulcata
                                             Navicula subtenelloides
                                             Navicula subtenuis
                                             Navicula subtilacea
                                             Navicula subtilis
                                             Navicula subtilissima
                                                   Navicula subtilissima f. baicalensis
                                                   Navicula subtilissima f. rostrata
                                               Navicula subtilissima var. himalayensis
                                               Navicula subtilissima var. minor
                                               Navicula subtilissima var. okamurae
                                             Navicula subtilyra
                                             Navicula subundulata
                                             Navicula subvalida
                                             Navicula subvasta
                                             Navicula subveneta
                                             Navicula subventricosa
                                             Navicula subviridula
                                             Navicula subvitabunda
                                             Navicula subvulpina
                                                   Navicula subvulpina f. curta
                                                   Navicula subvulpina f. genuina
                                             Navicula succincta
                                             Navicula suchlandti
                                             Navicula sudanensis
                                             Navicula sudora
                                             Navicula suecica
                                             Navicula suecicarum
                                             Navicula suecorum
                                               Navicula suecorum var. capitata
                                             Navicula suffocata
                                             Navicula suhinensis
                                             Navicula sulta
                                             Navicula suluensis
                                             Navicula sumatrensis
                                             Navicula sunkonensis
                                             Navicula superba
                                                   Navicula superba f. minor
                                               Navicula superba var. crassa
                                               Navicula superba var. elliptica
                                               Navicula superba var. subacuta
                                             Navicula superciliaris
                                             Navicula supercontenta
                                             Navicula supergregaria
                                             Navicula superimposita
                                             Navicula supleeorum
                                             Navicula supralitoralis
                                             Navicula suprinii
                                             Navicula suriana
                                             Navicula surinamensis
                                             Navicula suspecta
                                             Navicula suspica
                                             Navicula suspirii
                                             Navicula sverdrupii
                                             Navicula sydowii
                                             Navicula symmetrica
                                                   [Navicula schroeteri var. symmetrica]
                                             Navicula syrachii
                                             Navicula syvertsenii
                                             Navicula szaboi
                                             Navicula szont?ghii
                                             Navicula sšhrensis
                                                   [Pinnularia sšhrensis]
                                               Navicula sšhrensis var. capitata
                                               Navicula sšhrensis var. musciola
                                             Navicula tabellariaeformis
                                             Navicula taedens
                                             Navicula taeniata
                                             Navicula tagiana
                                             Navicula tahitensis
                                             Navicula tainensis
                                             Navicula tairuaensis
                                             Navicula takoradiensis
                                             Navicula tambourense
                                             Navicula tamnaeana
                                             Navicula tanakae
                                             Navicula tanganyikae
                                             Navicula tanneri
                                             Navicula tantula
                                                   [Eolimna tantula]
                                             Navicula tantuloides
                                             Navicula taraxa
                                             Navicula taschenbergeri
                                             Navicula tau
                                             Navicula tauta
                                             Navicula taylori
                                             Navicula teleta
                                             Navicula temeraria
                                             Navicula temperei
                                             Navicula temperiana
                                             Navicula tenella
                                                   Navicula tenella f. parva
                                               Navicula tenella var. fossilis
                                               Navicula tenella var. minutissima
                                             Navicula tenellaeformis
                                             Navicula tenelloides
                                                   [Navicula carniolensis]
                                                   [Navicula cryptocephala var. angusta]
                                               Navicula tenelloides var. capitata
                                               Navicula tenelloides var. elliptica
                                             Navicula tentata
                                             Navicula tenuicephala
                                             Navicula tenuipunctata
                                                   [Navicula ordinaria]
                                             Navicula tenuirostris
                                             Navicula tenuis
                                               Navicula tenuis var. sublinearis
                                             Navicula tenuissima
                                             Navicula tenuistriata
                                             Navicula termes
                                               Navicula termes var. stauroneiformis
                                             Navicula terrestris
                                                   Navicula terrestris f. triundulata
                                               Navicula terrestris var. vandermerwei
                                             Navicula terricola
                                             Navicula tersa
                                             Navicula teschi
                                             Navicula testa
                                             Navicula testata
                                             Navicula testudo
                                             Navicula texana
                                             Navicula th?elii
                                             Navicula thaitiana
                                             Navicula thallodes
                                             Navicula theelii
                                             Navicula theinemannii
                                             Navicula thermophila
                                             Navicula theronii
                                             Navicula theta
                                             Navicula thiebaudii
                                             Navicula thienemanni
                                             Navicula thienemannii
                                               Navicula thienemannii var. africana
                                             Navicula thienemannioides
                                             Navicula thienemannoides
                                             Navicula thiennemanii
                                             Navicula thomasii
                                             Navicula thorax
                                             Navicula thoroddseni
                                             Navicula thoroddsenii
                                             Navicula thouleti
                                             Navicula throddsenii
                                             Navicula thumii
                                             Navicula thurholmensis
                                             Navicula thuringiaca
                                             Navicula thuringica
                                             Navicula thurstonensis
                                             Navicula tientsinensis
                                             Navicula tignaria
                                             Navicula tithonia
                                             Navicula tokyoensis
                                             Navicula tolmani
                                             Navicula tomosensis
                                             Navicula tongatensis
                                             Navicula topia
                                             Navicula torellii
                                               Navicula torellii var. vahli
                                             Navicula torganae
                                             Navicula torifera
                                             Navicula torneensis
                                                   Navicula torneensis f. apiculata
                                               Navicula torneensis var. aboensis
                                               Navicula torneensis var. lanceolata
                                             Navicula torpedo
                                             Navicula torquata
                                             Navicula torrendi
                                                   Navicula torrendi f. nana
                                               Navicula torrendi var. capitata
                                             Navicula tortuosa
                                             Navicula tortura
                                             Navicula totarae
                                             Navicula toulaae
                                               Navicula toulaae var. apiculata
                                               Navicula toulaae var. danica
                                             Navicula toulaae (toulae)
                                             Navicula toulae
                                               Navicula toulae var. arata
                                               Navicula toulae var. capitata
                                             Navicula toxa
                                             Navicula trabecula
                                             Navicula tracery
                                             Navicula transfuga
                                                   Navicula transfuga f. fossilis
                                               Navicula transfuga var. bruni
                                               Navicula transfuga var. neupaueri
                                               Navicula transfuga var. plagiostoma
                                               Navicula transfuga var. septentrionalis
                                             Navicula transistantioides
                                             Navicula transitans
                                                   Navicula transitans f. delicatula
                                                   Navicula transitans f. genuina
                                                   Navicula transitans f. gracilenta
                                                   Navicula transitans f. minuta
                                                   Navicula transitans f. robusta
                                               Navicula transitans var. asymmetrica
                                               Navicula transitans var. derasa
                                               Navicula transitans var. erosa
                                               Navicula transitans var. incudiformis
                                               Navicula transitans var. kukensis
                                               Navicula transitans var. lata
                                             Navicula translucens
                                             Navicula translucida
                                             Navicula transvaalensis
                                             Navicula transylvanica
                                               Navicula transylvanica var. producta
                                             Navicula tranversa
                                             Navicula traucilola
                                             Navicula trevelyana
                                               Navicula trevelyana var. hungarica
                                               Navicula trevelyana var. minor
                                             Navicula triangulifera
                                             Navicula trichoptera
                                             Navicula triconfusa
                                             Navicula tridens
                                             Navicula tridentula
                                                   Navicula tridentula f. parallela
                                               Navicula tridentula var. indica
                                               Navicula tridentula var. parallela
                                               Navicula tridentula var. tenuis
                                               Navicula tridentula var. tridentula
                                             Navicula tridentulaeformis
                                             Navicula tridertula
                                               Navicula tridertula var. parallela
                                             Navicula trigibba
                                             Navicula trigibbula
                                             Navicula trigomirae
                                             Navicula trigonocephala
                                                   [Pinnularia trigonocephala]
                                                   Navicula trigonocephala f. minor
                                               Navicula trigonocephala var. contracta
                                               Navicula trigonocephala var. depressa
                                             Navicula trigramma
                                             Navicula trilatera
                                             Navicula trilineata
                                             Navicula trinkleri
                                             Navicula trinodis
                                                   Navicula trinodis f. crassior
                                                   Navicula trinodis f. minuta
                                             Navicula trinotata
                                             Navicula tripartita
                                             Navicula tripunctata
                                                   [Frustulia neglecta]
                                                   [Navicula gracilis var. neglecta]
                                                   [Navicula transversa]
                                                   [Schizonema neglectum]
                                                   [Vanheurckia neglectum]
                                                   [Vanheurckia rhomboides var. neglecta]
                                               Navicula tripunctata var. arctica
                                               Navicula tripunctata var. cuneata
                                               Navicula tripunctata var. flavescens
                                               Navicula tripunctata var. minor
                                               Navicula tripunctata var. schizonemoides
                                                     [Navicula gracilis var. schizonemoides]
                                               Navicula tripunctata var. tripunctata
                                               Navicula tripunctata var. viridis
                                             Navicula tristis
                                             Navicula tristitiae
                                             Navicula tristriata
                                             Navicula trituberculata
                                             Navicula triumvirorum
                                             Navicula triundulata
                                             Navicula trivialis
                                             Navicula trochus
                                             Navicula troglodytes
                                             Navicula trolopensis
                                             Navicula trompii
                                               Navicula trompii var. major
                                             Navicula trophicatrix
                                             Navicula tropica
                                             Navicula tropicoidea
                                             Navicula truani
                                             Navicula truncata
                                             Navicula truncatula
                                             Navicula trunculus
                                             Navicula tschuktschorum
                                             Navicula tsitsikammae
                                             Navicula tubulata
                                             Navicula tubulifera
                                             Navicula tubulosa
                                               Navicula tubulosa var. rhomboidea
                                             Navicula tugelae
                                             Navicula tugtoi
                                             Navicula tulugakii
                                             Navicula tumescens
                                             Navicula tumescensoides
                                             Navicula tumida
                                               Navicula tumida var. adriatica
                                               Navicula tumida var. genuina
                                               Navicula tumida var. linearis
                                             Navicula tumidula
                                             Navicula turgescens
                                             Navicula turgida
                                               Navicula turgida var. subaequalis
                                             Navicula turgidula
                                             Navicula turkestanensis
                                             Navicula turris
                                             Navicula tuscula
                                                   Navicula tuscula f. minor
                                                   Navicula tuscula f. rostrata
                                               Navicula tuscula var. arata
                                               Navicula tuscula var. capitata
                                               Navicula tuscula var. dense
                                               Navicula tuscula var. densistriata
                                               Navicula tuscula var. media
                                               Navicula tuscula var. schinzii
                                               Navicula tuscula var. tuscula
                                             Navicula tuszoni
                                             Navicula tuzoni
                                             Navicula twymania
                                             Navicula twymaniana
                                             Navicula twymanniana
                                             Navicula typografica
                                             Navicula tytthocephala
                                             Navicula udintsevii
                                             Navicula ulna
                                             Navicula ultratenelloides
                                             Navicula umbilicata
                                             Navicula umbra
                                             Navicula umida
                                             Navicula umkantziensis
                                             Navicula umtalensis
                                             Navicula umtentwenica
                                             Navicula uncinata
                                             Navicula undata
                                             Navicula undosa
                                             Navicula undulata
                                             Navicula undulatistriata
                                             Navicula unica
                                             Navicula unilaterarea
                                             Navicula unipunctata
                                             Navicula uniseriata
                                             Navicula upupensis
                                             Navicula urbana
                                             Navicula ursina
                                             Navicula ursinus
                                             Navicula uspenskiana
                                             Navicula usutensis
                                             Navicula utermoehli
                                             Navicula utermoehlii
                                             Navicula utlandshoerniensis
                                             Navicula utriculus
                                             Navicula vacillans
                                                   Navicula vacillans f. minuta
                                               Navicula vacillans var. inflata
                                               Navicula vacillans var. renitens
                                             Navicula vaga
                                             Navicula vagabunda
                                             Navicula vahliana
                                             Navicula vahlii
                                             Navicula valdestriata
                                             Navicula valdicostata
                                             Navicula valens
                                             Navicula valeriana
                                             Navicula valida
                                                   Navicula valida f. minor
                                               Navicula valida var. capensis
                                               Navicula valida var. groenlandica
                                               Navicula valida var. minuta
                                             Navicula validicostata
                                             Navicula vampyra
                                             Navicula vana
                                             Navicula vandamii
                                               Navicula vandamii var. mertensiae
                                             Navicula vandermerwei
                                             Navicula vaneei
                                             Navicula vanei
                                             Navicula vaneldenii
                                             Navicula vanhoeffeniformis
                                             Navicula vanhoeffenii
                                                   [Stauropsis vanhoeffenii]
                                             Navicula vanidica
                                             Navicula vanmeeli
                                             Navicula vara
                                             Navicula variabilis
                                               Navicula variabilis var. capitata
                                               Navicula variabilis var. gomphonemacea
                                             Navicula varians
                                             Navicula varikuli
                                             Navicula variolata
                                                   Navicula variolata f. intermedia
                                             Navicula variolinea
                                             Navicula variostriata
                                               Navicula variostriata var. africana
                                               Navicula variostriata var. fossilis
                                               Navicula variostriata var. jogensis
                                             Navicula vasta
                                             Navicula vaszaryi
                                             Navicula vatinata
                                             Navicula vaucheriae
                                               Navicula vaucheriae var. densistriata
                                             Navicula vaupelli
                                             Navicula vaupellii
                                             Navicula vegae
                                               Navicula vegae var. cuneata
                                               Navicula vegae var. subconstricta
                                             Navicula vekhovii
                                             Navicula velata
                                             Navicula velox
                                             Navicula venerablis
                                             Navicula venetiformis
                                             Navicula venetoides
                                             Navicula venezuelana
                                             Navicula venezuelensis
                                             Navicula ventralis
                                               Navicula ventralis var. Skvortzov
                                               Navicula ventralis var. chilensis
                                               Navicula ventralis var. simplex
                                             Navicula ventraloconfusa
                                                   Navicula ventraloconfusa f. simplex
                                             Navicula ventraloides
                                             Navicula ventricosa
                                               Navicula ventricosa var. arverna
                                               Navicula ventricosa var. bacillaris
                                               Navicula ventricosa var. cuneata
                                               Navicula ventricosa var. decrescens
                                               Navicula ventricosa var. elliptica
                                               Navicula ventricosa var. jenisseyensis
                                               Navicula ventricosa var. kjellmaniana
                                               Navicula ventricosa var. laevis
                                             Navicula venus
                                             Navicula venusta
                                               Navicula venusta var. elliptica
                                               Navicula venusta var. intermedia
                                             Navicula venustissima
                                             Navicula verecundaeformis
                                             Navicula verecundoides
                                             Navicula vernalis
                                             Navicula vertebrata
                                             Navicula vespa
                                             Navicula vesparella
                                             Navicula vetita
                                             Navicula vexativa
                                             Navicula vibrio
                                             Navicula vichiensis
                                             Navicula vichyensis
                                             Navicula vicina
                                             Navicula vickersii
                                             Navicula vidovichii
                                             Navicula vilaplanii
                                                   [Navicula longicephala var. vilaplanii]
                                             Navicula viminea
                                             Navicula viminoides
                                               Navicula viminoides subsp. cosmomarina
                                             Navicula vincita
                                             Navicula viola
                                             Navicula virgata
                                             Navicula virginalis
                                             Navicula virginea
                                             Navicula viridis
                                                   Navicula viridis f. anomala
                                                   Navicula viridis f. curta
                                                   Navicula viridis f. interrupta
                                                   Navicula viridis f. longior
                                                   Navicula viridis f. staurophora
                                               Navicula viridis var. angustatum
                                               Navicula viridis var. commutata
                                               Navicula viridis var. fossilis
                                               Navicula viridis var. lata
                                               Navicula viridis var. pachyptera
                                               Navicula viridis var. parallelestriata
                                               Navicula viridis var. patagonica
                                               Navicula viridis var. stourophora
                                               Navicula viridis var. styliformis
                                               Navicula viridis var. sublinearis
                                             Navicula viridula
                                                   [Frustulia viridula]
                                                   [Navicula silesiaca]
                                                   [Navicula viridula var. silesiaca]
                                                   [Pinnularia radiosa var. silesiaca]
                                                   [Pinnularia silesiaca]
                                                   [Pinnularia viridula]
                                                   Navicula viridula f. capitata
                                                   Navicula viridula f. intermedia
                                                   Navicula viridula f. jeniseyensis
                                                   Navicula viridula f. major
                                                   Navicula viridula f. minor
                                                   Navicula viridula f. subparallela
                                               Navicula viridula var. abbreviata
                                               Navicula viridula var. argunensis
                                               Navicula viridula var. avenacea
                                                     [Navicula avenacea]
                                                     [Pinnularia radiosa var. avenacea]
                                               Navicula viridula var. calcuttensis
                                               Navicula viridula var. capitata
                                               Navicula viridula var. chandolensis
                                               Navicula viridula var. denselineolata
                                               Navicula viridula var. ehrenbergii
                                               Navicula viridula var. genuina
                                               Navicula viridula var. germainii
                                                     [Navicula germainii]
                                                     [Navicula rhynchocephala var. germainii]
                                               Navicula viridula var. germanica
                                               Navicula viridula var. hankensis
                                               Navicula viridula var. japonica
                                               Navicula viridula var. lata
                                               Navicula viridula var. linearis
                                                     [Navicula viridula f. linearis]
                                               Navicula viridula var. nipponica
                                               Navicula viridula var. radians
                                               Navicula viridula var. recens
                                               Navicula viridula var. rostellata
                                                     [Navicula rostellata var. minor]
                                               Navicula viridula var. rostrata
                                               Navicula viridula var. signata
                                               Navicula viridula var. trochoidea
                                               Navicula viridula var. undulata
                                               Navicula viridula var. vidarbhensis
                                             Navicula viridulacalcis
                                               Navicula viridulacalcis subsp. viridulacalcis
                                             Navicula viriduloides
                                               Navicula viriduloides var. lanceolata
                                             Navicula virihensis
                                             Navicula virosa
                                             Navicula visitanda
                                             Navicula vitila
                                             Navicula vitrea
                                               Navicula vitrea var. endolithica
                                             Navicula vitriscala
                                             Navicula vittata
                                             Navicula vladivostokensis
                                             Navicula voigtioides
                                             Navicula voltaensis
                                             Navicula von-hauseniae
                                             Navicula vukotinovicii
                                             Navicula vula
                                             Navicula vulgaris
                                               Navicula vulgaris var. lacustris
                                             Navicula vulpecula
                                             Navicula vulpina
                                                   [Navicula gracilis var. vulpina]
                                                   [Navicula viridula var. vulpina]
                                                   [Schizonema vulpinum]
                                                   Navicula vulpina f. baicalensis
                                               Navicula vulpina var. avenacea
                                               Navicula vulpina var. baicalensis
                                               Navicula vulpina var. mascarenae
                                               Navicula vulpina var. oregonica
                                               Navicula vulpina var. ranomafanensis
                                               Navicula vulpina var. rostrata
                                             Navicula vumbae
                                             Navicula waernensis
                                             Navicula walkeri
                                             Navicula wallacei
                                             Navicula walterconradii
                                             Navicula wankaremae
                                             Navicula wardhensis
                                             Navicula wardii
                                             Navicula warmingii
                                             Navicula wasmundii
                                             Navicula wavella
                                             Navicula wellingtonica
                                             Navicula werestschagini
                                               Navicula werestschagini var. curta
                                             Navicula wetzeli
                                             Navicula wheeleri
                                             Navicula whitefishensis
                                             Navicula wiesneri
                                                   [Navicula heufleri f. minuta]
                                             Navicula wiesnerii
                                             Navicula wigginsiana
                                             Navicula wiktoriae
                                             Navicula wilczeckii
                                             Navicula wilczekii
                                             Navicula wildii
                                             Navicula willeri
                                             Navicula williamsonii
                                             Navicula willisiae
                                             Navicula wilmani
                                             Navicula wisei
                                             Navicula wislouchii
                                               Navicula wislouchii var. curta
                                             Navicula witti
                                             Navicula wittiana
                                             Navicula wittii
                                             Navicula wittrockii
                                                   Navicula wittrockii f. directarea
                                               Navicula wittrockii var. fennica
                                             Navicula woltereckii
                                             Navicula worochinii
                                             Navicula woronichinii
                                             Navicula woroninii
                                             Navicula wrightiana
                                             Navicula wrightii
                                             Navicula wulfii
                                             Navicula wunsamiae
                                             Navicula wustula
                                             Navicula wygaschii
                                             Navicula xi
                                                   Navicula xi f. peltoides
                                             Navicula yaarensis
                                             Navicula yabe
                                             Navicula yarrensis
                                               Navicula yarrensis var. americana
                                               Navicula yarrensis var. aradina
                                               Navicula yarrensis var. bituminosa
                                               Navicula yarrensis var. de-wittiana
                                               Navicula yarrensis var. gigantea
                                               Navicula yarrensis var. gracilior
                                               Navicula yarrensis var. hevesensis
                                               Navicula yarrensis var. lateradiata
                                               Navicula yarrensis var. magna
                                               Navicula yarrensis var. ovalis
                                               Navicula yarrensis var. phalangium
                                               Navicula yarrensis var. simbirskiana
                                               Navicula yarrensis var. valida
                                             Navicula yatukaensis
                                             Navicula yorkensis
                                             Navicula yuraensis
                                             Navicula zachariasi
                                             Navicula zachariasii
                                             Navicula zanardiniana
                                             Navicula zanonii (zanoni)
                                             Navicula zanzibarica
                                                   Navicula zanzibarica f. sumatrana
                                               Navicula zanzibarica var. zebuana
                                             Navicula zastronensis
                                             Navicula zechenterii
                                             Navicula zeilleri
                                                   Navicula zeilleri f. maxima
                                             Navicula zelebori
                                             Navicula zellensis
                                               Navicula zellensis var. baicalensis
                                               Navicula zellensis var. linearis
                                               Navicula zellensis var. typica
                                             Navicula zeta
                                                   [Navicula apposita]
                                                   [Navicula expansa]
                                                   [Navicula wohlenbergii]
                                                   [Schizonema zeta]
                                                   [Sieminskia wohlenbergii]
                                                   [Sieminskia zeta]
                                               Navicula zeta var. mexicana
                                             Navicula zichyi
                                               Navicula zichyi var. leonis
                                               Navicula zichyi var. ursina
                                             Navicula zichyj
                                             Navicula zimmermannii
                                             Navicula zipila
                                             Navicula zodhyi
                                             Navicula zohdyi
                                             Navicula zonula
                                             Navicula zostereti
                                               Navicula zostereti var. acutiuscula
                                               Navicula zostereti var. seychellensis
                                             Navicula zsivnyana
                                             Navicula zulu
                                     Naviculadicta
                                             Naviculadicta absoluta
                                                   [Navicula absoluta]
                                             Naviculadicta ambiguissima
                                             Naviculadicta angustata
                                             Naviculadicta brasiliana
                                             Naviculadicta bremensiformis
                                             Naviculadicta bryophila
                                             Naviculadicta chilensis
                                             Naviculadicta circumborealis
                                             Naviculadicta cosmopolitana
                                             Naviculadicta diahotana
                                             Naviculadicta digituloides
                                             Naviculadicta digitulus
                                             Naviculadicta geisslerae
                                             Naviculadicta geissleriae
                                             Naviculadicta hambergii
                                             Naviculadicta ivatoensis
                                             Naviculadicta jurafontinalis
                                             Naviculadicta kaiseri
                                             Naviculadicta laterostrata
                                             Naviculadicta lepida
                                             Naviculadicta linearis
                                             Naviculadicta litos
                                             Naviculadicta moratoria
                                             Naviculadicta multiconfusa
                                             Naviculadicta nagumoi
                                             Naviculadicta nanogomphonema
                                             Naviculadicta obdurata
                                                   [Navicula obdurata]
                                             Naviculadicta paraffinis
                                             Naviculadicta parasemen
                                             Naviculadicta pseudofallacia
                                             Naviculadicta pseudofusticulus
                                             Naviculadicta pseudostauron
                                             Naviculadicta pseudoventralis
                                                   [Navicula pseudoventralis]
                                             Naviculadicta raederae
                                             Naviculadicta raederiae
                                             Naviculadicta rionautensis
                                             Naviculadicta sassiana
                                             Naviculadicta schaumburgii
                                             Naviculadicta schneckenburgeri
                                             Naviculadicta silvahercynia
                                             Naviculadicta stauroneioides
                                             Naviculadicta tomesii
                                               Naviculadicta tomesii var. clagesii
                                             Naviculadicta vaucheriae
                                             Naviculadicta ventraloconfusa
                                               Naviculadicta ventraloconfusa var. chilensis
                                     Navigiolum
                                             Navigiolum canoris
                                                   [Navicula canoris]
                                             Navigiolum exiliforme
                                             Navigiolum sardiniense
                                             Navigiolum spineum
                                             Navigiolum spinosissimum
                                             Navigiolum uruguayense
                                     Neidiopsis
                                             Neidiopsis levanderi
                                                   [Neidium levanderi]
                                               Neidiopsis levanderi var. capitata
                                               Neidiopsis levanderi var. tatrensis
                                             Neidiopsis vekhovii
                                                   [Neidium vekhovii]
                                             Neidiopsis wulffii
                                                   [Navicula wulffii]
                                     Nupela
                                             Nupela astartiella
                                             Nupela brachysirioides
                                             Nupela brachysiroides
                                             Nupela butterfassiana
                                                   [Achnanthes butterfassiana]
                                             Nupela carolina
                                             Nupela chilensis
                                             Nupela comperei
                                             Nupela cymbelloidea
                                             Nupela decipiens
                                             Nupela deformis
                                             Nupela devilensis
                                                   [Achnanthes devilensis]
                                             Nupela encyonopsis
                                             Nupela exotica
                                             Nupela fennica
                                             Nupela giluwensis
                                             Nupela gracillima
                                             Nupela imperfecta
                                             Nupela impexiformis
                                                   [Achnanthes impexiformis]
                                             Nupela jahniae-reginae
                                             Nupela lapidosa
                                               Nupela lapidosa var. subrostrata
                                             Nupela lesothensis
                                             Nupela neglecta
                                             Nupela neotropica
                                             Nupela obliqua
                                             Nupela pallavicinii
                                             Nupela paludigena
                                                   [Anomoeoneis paludigena]
                                             Nupela pardinhoensis
                                             Nupela praecipua
                                                   [Achnanthes praecipua]
                                             Nupela rhetica
                                                   [Anomoeoneis rhetica]
                                             Nupela rumrichorum
                                             Nupela schoemaniana
                                             Nupela silvahercynia
                                                   [Achnanthes silvahercynia]
                                             Nupela subinvicta
                                             Nupela subpallavicini
                                             Nupela subpallavicinii
                                             Nupela tenuicephala
                                             Nupela tenuistriata
                                             Nupela tristis
                                             Nupela tropica
                                                   [Achnanthes tropica]
                                             Nupela vitiosa
                                                   [Navicula vitiosa]
                                             Nupela vyvermanii
                                             Nupela wellneri
                                                   [Navicula wellneri]
                                             Nupela zizkae
                                     Paleopandorus
                                             Paleopandorus pergracilis
                                     Pinnunavis
                                             Pinnunavis aleemii
                                             Pinnunavis armoricana
                                             Pinnunavis endophytica
                                             Pinnunavis gebhardii
                                             Pinnunavis genustriata
                                             Pinnunavis yarrensis
                                                   [Schizonema yarrense]
                                     Prestauroneis
                                             Prestauroneis integra
                                                   [Cymbella integra]
                                                   [Pinnularia integra]
                                                   [Placoneis integra]
                                                   [Schizonema integrum]
                                             Prestauroneis tumida
                                     Pseudogomphonema
                                             Pseudogomphonema arcticum
                                             Pseudogomphonema groenlandicum
                                             Pseudogomphonema kamtschaticum
                                             Pseudogomphonema monicae
                                             Pseudogomphonema monikae
                                             Pseudogomphonema plinskii
                                             Pseudogomphonema septentrionale
                                     Pseudonavicula
                                     Pulchella
                                             Pulchella kriegeriana
                                                   [Biremis kriegeriana]
                                             Pulchella obsita
                                                   [Navicula obsita]
                                             Pulchella schwabei
                                                   [Biremis schwabei]
                                                   [Pinnularia schwabei]
                                     Rhoikoneis
                                             Rhoikoneis bolleana
                                             Rhoikoneis sponsalia
                                                   [Navicula sponsalia]
                                             Rhoikoneis trinodis
                                     Rouxiopsis
                                             Rouxiopsis bipartita
                                     Seminavis
                                             Seminavis arranensis
                                             Seminavis barbara
                                             Seminavis basilica
                                             Seminavis cymbelloides
                                             Seminavis cyrtorapha
                                             Seminavis delicatula
                                             Seminavis eulensteinii
                                             Seminavis gracilenta
                                             Seminavis heidenii
                                             Seminavis latior
                                             Seminavis macilenta
                                             Seminavis obtusiuscula
                                                   [Amphora obtusiuscula]
                                             Seminavis robusta
                                             Seminavis strigosa
                                                   [Amphora strigosa]
                                             Seminavis ventricosa
                                                   [Amphora ventricosa]
                                             Seminavis witkowskii
                                     Sieminskia
                                     Trachyneis
                                             Trachyneis antillarum
                                             Trachyneis aspera
                                                   [Navicula aspera var. genuina]
                                                   [Navicula stauroneiformis]
                                                   [Pinnularia aspera]
                                                   [Schizonema asperum]
                                                   [Stauroneis achnanthes]
                                                   [Stauroneis aspera]
                                                   [Stauroptera aspera]
                                               Trachyneis aspera var. contermina
                                               Trachyneis aspera var. elliptica
                                               Trachyneis aspera var. genuina
                                               Trachyneis aspera var. intermedia
                                                     [Navicula aspera var. intermedia]
                                               Trachyneis aspera var. oblonga
                                               Trachyneis aspera var. pulchella
                                                     [Stauroneis pygmea]
                                               Trachyneis aspera var. robusta
                                             Trachyneis clepsidra
                                             Trachyneis clepsydra
                                                   [Navicula clepsydra]
                                                   [Schizonema clepsydra]
                                                   [Stauroneis pulchella var. clepsydra]
                                               Trachyneis clepsydra var. scotica
                                             Trachyneis johnsoniana
                                                   [Navicula johnsoniana]
                                             Trachyneis velata
                                     Veigaludwigia
                                             Veigaludwigia urbana
                                             Veigaludwigia willeri
                                             Veigaludwigia willerii

Problematic Rooting (52538)
                                                   Navicula placentula f. jenisseyensis
                                                   Navicula placentula f. lanceolata
                                                   Navicula placentula f. latiuscula
                                                   Navicula placentula f. minor
                                                   Navicula placentula f. minuta
                                                   Navicula placentula f. multistriata
                                                   Navicula placentula f. nipponica
                                                   Navicula placentula f. rostrata
                                               Navicula placentula var. apiculata
                                               Navicula placentula var. genuina
                                               Navicula placentula var. grossepunctata
                                               Navicula placentula var. jenisseyensis
                                               Navicula placentula var. lanceolata
                                               Navicula placentula var. latiuscula
                                               Navicula placentula var. maculata
                                               Navicula placentula var. major
                                               Navicula placentula var. minuta
                                               Navicula placentula var. rostrata
                                               Navicula placentula var. tropica

Problematic Rooting (53232)
                                               Navicula subinflata var. elliptica

Problematic Rooting (5924)
                                             Homoeocladia bulnheimiana
                                             Homoeocladia conferta
                                             Homoeocladia constricta
                                             Homoeocladia dufourii
                                             Homoeocladia elongata
                                             Homoeocladia filiformis
                                             Homoeocladia germanica
                                             Homoeocladia spathulata
                                             Homoeocladia subcohaerens
                                               Homoeocladia subcohaerens var. chinensis
                                               Homoeocladia subcohaerens var. scotica
                                                     [Nitzschia subcohaerens var. scotica]

Problematic Rooting (6118)
                                             Kobayasia okadae

Problematic Rooting (8048)
                                             Stauroptera achnanthes
                                             Stauroptera acus
                                             Stauroptera amphioxys
                                             Stauroptera asperula
                                             Stauroptera brasiliensis
                                             Stauroptera capitata
                                             Stauroptera constricta
                                             Stauroptera construens
                                             Stauroptera decussata
                                             Stauroptera dendrobates
                                             Stauroptera distrauridium
                                             Stauroptera granulata
                                             Stauroptera leptocephala
                                             Stauroptera mesogongyla
                                             Stauroptera monogramma
                                             Stauroptera neptunia
                                             Stauroptera nicobarica
                                             Stauroptera nobilis
                                             Stauroptera oblonga
                                             Stauroptera paucicostata
                                             Stauroptera peckii
                                             Stauroptera peregrina
                                             Stauroptera phoenicenteron
                                             Stauroptera platystoma
                                             Stauroptera pumila
                                             Stauroptera pusilla
                                             Stauroptera roraimae
                                             Stauroptera semen
                                             Stauroptera semicruciata
                                             Stauroptera siamensis
                                             Stauroptera tabellaria
                                             Stauroptera trinodis
                                             Stauroptera truncata